BULLS E-STREAM EVO 45 AM Review

Bulls E Stream Evo 45 Am Electric Bike Review
2019 Bulls E Stream Evo 45 Am
2019 Bulls E Stream Evo 45 Am Double Chainring 30 44 Tooth
2019 Bulls E Stream Evo 45 Am Downtube Integrated Hidden Battery
2019 Bulls E Stream Evo 45 Am Handlebar Grips
2019 Bulls E Stream Evo 45 Am Bloks Transflective Display And Trigger Shifters
2019 Bulls E Stream Evo 45 Am Ergon Ga30 Locking Grips
2019 Bulls E Stream Evo 45 Am Rockshox Yari Air Suspension Fork
2019 Bulls E Stream Evo 45 Am Magura Mt5 203mm Hydraulic Disc Brakes
2019 Bulls E Stream Evo 45 Am Selle Royal Rampage Saddle
2019 Bulls E Stream Evo 45 Am Rockshox Deluxe Rt Rear Suspension
2019 Bulls E Stream Evo 45 Am Schwalbe Noby Nic Plus Sized Tires
2019 Bulls E Stream Evo 45 Am 11 Speed Shimano Deore Xt
2019 Bulls E Stream Evo 45 Am 5 Amp Bmz Quick Charger
Bulls E Stream Evo 45 Am Electric Bike Review
2019 Bulls E Stream Evo 45 Am
2019 Bulls E Stream Evo 45 Am Double Chainring 30 44 Tooth
2019 Bulls E Stream Evo 45 Am Downtube Integrated Hidden Battery
2019 Bulls E Stream Evo 45 Am Handlebar Grips
2019 Bulls E Stream Evo 45 Am Bloks Transflective Display And Trigger Shifters
2019 Bulls E Stream Evo 45 Am Ergon Ga30 Locking Grips
2019 Bulls E Stream Evo 45 Am Rockshox Yari Air Suspension Fork
2019 Bulls E Stream Evo 45 Am Magura Mt5 203mm Hydraulic Disc Brakes
2019 Bulls E Stream Evo 45 Am Selle Royal Rampage Saddle
2019 Bulls E Stream Evo 45 Am Rockshox Deluxe Rt Rear Suspension
2019 Bulls E Stream Evo 45 Am Schwalbe Noby Nic Plus Sized Tires
2019 Bulls E Stream Evo 45 Am 11 Speed Shimano Deore Xt
2019 Bulls E Stream Evo 45 Am 5 Amp Bmz Quick Charger

Summary

  • One of the only full suspension mountain bikes from a premium brand that offers Class 3 high speed performance (28mph, 45km/h), long travel 150mm air suspension supports all mountain riding
  • Excellent weight distribution and drive system integration, the motor and battery are virtually hidden in the frame, sturdy 15mm and 12mm thru-axles provide strength for wider Boost hub spacing and plus sized tires that offer traction and stability at speed
  • Available in four frame sizes for optimal fit, sloped top tube lowers stand over height, integrated cables stay out of the way, extra large 203mm hydraulic disc brakes support quick smooth stops
  • Wide 22-speed drivetrain supports climbing and fast riding, above-average battery capacity extends range, integrated Micro-USB port on the control pad lets you charge accessories, the bike isn't stocked with a seat post dropper, Shimano Deore XT drivetrain with Shadow+ one-way clutch reduces drops and slaps

Video Review

Introduction

Make:

BULLS

Model:

E-STREAM EVO 45 AM

Price:

$5,499

Body Position:

Forward

Suggested Use:

Trail, Mountain

Electric Bike Class:

Speed Pedelec (Class 3)
Learn more about Ebike classes

Warranty:

2 Years Motor and Battery, 5 Years Frame

Availability:

United States, Canada

Model Year:

2019

Bicycle Details

Total Weight:

55.9 lbs (25.35 kg)

Battery Weight:

7.1 lbs (3.22 kg)

Motor Weight:

8.59 lbs (3.89 kg)

Frame Material:

7005 Aluminium Alloy

Frame Sizes:

16.14 in (40.99 cm)17.32 in (43.99 cm)19.29 in (48.99 cm)21.25 in (53.97 cm)

Geometry Measurements:

Medium 44cm Measurements: 17.5" Seat Tube, 22" Reach, 30" Stand Over Height, 37" Minimum Saddle Height, 30.75" Width, 76.5" Length

Frame Types:

High-Step

Frame Colors:

Matt Grey with Gloss Black and Metallic Red Accents

Frame Fork Details:

RockShox Yari Air Suspension, 150mm Travel, Compression Adjust with Lockout, Rebound Adjust, Boost 110mm Hub Spacing, 15mm Thru-Axle with Quick Release

Frame Rear Details:

RockShox Deluxe RT Air Suspension, 150mm Travel, Compression Adjust (3 Position), Rebound Adjust, Boost 148mm Hub Spacing, 12mm Thru-Axle with Quick Release

Attachment Points:

Bottle Cage Bosses, MonkeyLink Lights, MonkeyLink Bottle Adapter

Gearing Details:

22 Speed 2x11 Shimano Deore XT RD-M8000 Rear Derailleur with Shadow+ One-Way Clutch, Shimano Deore XT Front Derailleur, Shimano CS-M8000-11 11-40T Cassette

Shifter Details:

Shimano SL-M8000 Triggers on Right (Two-Way High Lever, Four-Shift Low Lever)

Cranks:

Miranda Classic, Aluminum Alloy, 170mm Length, SR Suntour 30-44 Tooth Chainrings with Alloy Guard

Pedals:

Wellgo C122B Alloy Platform, Cage Style

Headset:

Chin Haur, Sealed Cartridge, Threadless, Internal Cups, Tapered 1-1/8" to 1-1/2"

Stem:

Monkey Link Branded, Alloy, 55mm Length, 0° Rise

Handlebar:

Bulls Branded, Alloy, Low-Rise, 760mm Length, 25mm Rise, 9° Bend, 31.8mm Bore

Brake Details:

Magura MT5 Hydraulic Disc with 203mm Rotors, Quad-Piston Calipers, Two-Finger Magura MT5 Levers with Adjustable Reach

Grips:

Ergon GA30, Flat Rubber, Locking

Saddle:

BULLS Branded, Selle Royal Rampage

Seat Post:

BULLS Branded, Alloy

Seat Post Length:

350 mm

Seat Post Diameter:

30.9 mm

Rims:

BULLS Branded Eccentric 35, Double Wall, Alloy, (584x35c), 35mm Inner Width, 32 Hole

Spokes:

Stainless Steel, 14G Front and 13G Rear, Black with Nipples

Tire Brand:

Schwalbe Nobby Nic, 27.5" x 2.8" (70-584)

Wheel Sizes:

27.5 in (69.85cm)

Tire Details:

17 to 38 PSI, 1.2 to 2.6 BAR, ADDIX Speedgrip, EVO Evolution, APX Reinforced, TLE Snakeskin

Tube Details:

Presta Valve

Accessories:

Velo Plastic Chainstay Protector, Monkey Link Magnetic Interface for Front and Back Lights, Optional Monkey Link Lights Combo Pack (100 Lux, $170), Optional Monkey Link Water Bottle ($46)

Other:

IP56 Ingress Rating, Locking Removable Downtube-Integrated Battery Pack, 2.5lb 5 Amp BMZ Charger, Maximum 120 RPM Motor Support

Electronic Details

Motor Brand:

Brose Drive TF

Motor Type:

Mid-Mounted Geared Motor
Learn more about Ebike motors

Motor Nominal Output:

250 watts

Motor Peak Output:

530 watts

Motor Torque:

90 Newton meters

Battery Brand:

BMZ

Battery Voltage:

37 volts

Battery Amp Hours:

17.5 ah

Battery Watt Hours:

647.5 wh

Battery Chemistry:

Lithium-ion

Charge Time:

4.5 hours

Estimated Min Range:

35 miles (56 km)

Estimated Max Range:

85 miles (137 km)

Display Type:

BLOKS, BULLS CSI Sport Compact, Fixed, Backlit, Grayscale, Transflective LCD, Buttons: Power, +, -, Lights, Walk Assist, (Hold Lights Button to Change Units)

Readouts:

Light Icon, Walk Assist Icon, Up +, Down -, Power Level (0-4 Blocks), Current Speed, Battery Level (5 Bars)

Display Accessories:

5 Volt 500 Milliamp Micro USB Port at Base of Display Mount

Drive Mode:

Advanced Pedal Assist (Rear Wheel Speed, Pedal Cadence, and Pedal Torque Sensing, 380% Max Support)

Top Speed:

28 mph (45 kph)


Written Review

To run the forums, host the website, and travel, I charge a universal service fee for my reviews. This in-depth review was sponsored by BULLS North America. My goal is to be transparent and unbiased, this video and written review are not meant to be an endorsement of BULLS products.

BULLS updated their E-STREAM EVO 45 product for 2019 and changed the FS to AM, which stands for all mountain. This is a Class 3 speed pedelec e-mountain bike! That’s very unique and rare in the space, because many trails restrict use to Class 1 only, which means 20mph. In my experience, test riding the latest EVO 45 for this review, the top climbing speeds may still hover around 8-10mph. The big difference is in how quickly you’ll be able to ride to the trail on paved streets, or how quickly you can zip through level cross country sections. This electric bicycle can reach ~28mph before the motor cuts out completely. You’ll still have to work, there’s no throttle mode, but it helps you overcome wind resistance and tire drag. Tires on this model come in plus sized 27.5″ x 2.8″ and are supported by sturdy thru-axles with quick release. BULLS has opted for Boost hub spacing, which is slightly wider than traditional, in order to create a sturdier bracing angle for the spokes which increases strength and stiffness. The big differences between this model and the 2017 version include MonkeyLink magnetic wired-in light connections (the kit costs $170) and bottle adapter (the bottle costs $45), an improved charge port cover and locking core position, better protection for the base of the battery and motor casing (rubber vs. foam), sturdier rear suspension design and surround-protection, a more reliable kickstand, and nicer Magura brand hydraulic disc brakes vs. Tektro. Much has remained the same, but the price has increased by $300. Given how unique this offering is, being a high-speed all mountain bike from a leading company with top-end components, I think the price is warranted. It would make an excellent adventure bike for off-highway vehicle (OHV) trails or a great “adventure commuter” allowing you to cut across any type of terrain on your way to work. The Brose drive system is smooth and quiet, the battery offers above-average capacity, and BULLS has a great reputation with dealers and service centers all around the world. I really like the color scheme updates, and little extras including a Micro-USB charging port built into the BLOKS display panel clamp. While the older model came stock with integrated lights, a bell, and larger brake levers based on European requirements, the 2019 model is specced for the North America market with more customization and mountain-specefic features. It’s nice to be able to remove the MonkeyLink lights… or simply not buy them. With the stability and comfort of wider tires, this product feels stable and under control at higher speeds, and the 22 gear combinations provide plenty of comfortable cadence options. I’m usually not a fan of multiple chainrings, but BULLS has specced higher-end Shimano Deore XT for both and added a sturdy alloy bash guard. When you look at this product from the side, notice how compact and hidden the motor is, and how beautifully the battery integrates. The only hardware upgrade I would like to see added, or would consider adding aftermarket, is a seat post dropper. This would make transitioning through different types of terrain a bit easier because you wouldn’t have to stop and lower the saddle for descents and other sketch off-road section.

Driving this ebike is a 250 to 530 watt Brose mid drive called the TF (which stands for trekking, fast). It’s capable of producing up to 90 newton meters of torque, which is very capable for climbing as you shift through lower gears. The casing is compact, but sturdy, and the motor produces much less noise than competing products I’ve tested. This is because it utilizes a Gates Carbon belt drive between the planetary geared motor and the driveshaft spindle. When riding on a dirt trail, especially with larger knobby tires, it almost disappears completely. This adds to the visual stealthiness mentioned earlier. One thing you won’t find here is shift detection. The motor controller measures rear wheel speed, pedal cadence and pedal torque, but relies on you to shift thoughtfully in order to reduce grinding and mashing. You can do this by backing off a bit as you click through gears. It’s a more advanced drivetrain in some ways, but extremely quick, natural, and fluid. Since the motor interfaces with traditionally sized chainrings, and there’s no reduction gearing in between, you won’t experience pedal drag when the ebike systems are off of you’re striving to top the maximum 28mph top speed.

Powering the motor, two MonkeyLink light mounts, and 5 volt Micro-USB port on the control pad is a high capacity Lithium-ion battery pack. Inside are 18650 BMZ branded cells offering 37 volts and 17.5 amp hours of energy, which is quite a lot! Approximately 50% more than the average 500 watt hours I see from most competitors this generation. Note that anytime you’re riding above 20mph, air resistance produces drag exponentially. People aren’t super aerodynamic when sitting up straight, riding on a bulky mountain bike frame with wide knobby tires. And, on those occasions where you throw efficiency to the wind and max out at 28mph, I’d suggest taking those turns very carefully lest you slide out and whack your chin as I have done while joy riding across wet grass on my way to work. This e-bike feels a lot like flying because it can handle almost any terrain comfortably, and won’t leave you breathless to maintain higher speeds. It’s a blast! Back to the battery itself, the mounting interface is solid but a little tricky to work with. You have to push the pack up from beneath the downtube (latching the top and snapping in the bottom). There used to be a sliding lever system that was tricky to deal with, but now it’s just a click-in system… During removal, it’s nice to have a kickstand on the bike, so you can use both free hands to unlock the pack and carefully lower it out. Unlike Bosch, which has a two-step design for their integrated PowerTube battery, the BULLS BMZ battery can tumble out unexpectedly when unlocked from above. It’s alright to never take the battery off of your bike, but that makes it heavier to lift, service, transport on car racks, and could expose the pack to extreme temperatures at outdoor racks or inside uninsulated garages and sheds. Lithium-ion batteries can be temperature sensitive, so it’s best to store them in a cool dry location to maximize lifespan. And, if you know that you won’t be riding for a month or more, try to leave it at 50% capacity so as not to stress the cells. Charging back up will be quick with this electric bike, because BMZ has supplied a faster five amp charger vs. the standard two amp that come with most competitors. Bosch has a really nice four amp charger that’s a bit slower but much lighter and physically smaller. I prefer the Bosch charger to this bulky aluminum charger… but suppose that this might be stronger in the long run? It interfaces with the battery with a magnetic plug that is designed to pop out vs. breaking if you trip on it accidentally. It’s called EnergyBus and uses the Rosenberger standard, which is pretty great and usually only found on nicer products. The pack weighs about seven pounds which isn’t too bat given the size, but it’s a bit long and doesn’t have a handle built in, so be careful. When you take a step back, it’s easy to appreciate how hidden the pack is, how well the new rubberized guard protects it (note that the electronics are also IP56 ingress rated against dust and water), and how perfectly weight is positioned (center and super low for optimal balance and handling).

Operating the BULLS E-STREAM EVO 45 AM feels simple because the display panel is compact and the main buttons are so intuitive. Once the battery is charged and mounted, you may begin by pressing the power button on top of the battery pack or on the top edge of the BLOKS control pad, which is located within reach of the left grip. This wakes it up, and shows your current speed in the middle, a battery bar infographic with five squares below, assist level with up to four full blocks above, and an up and down arrow with plus and minus symbols inside. To raise or lower motor support, you press onto the upper or lower half of the display itself. This fills in the blocks (which go from empty to four full) and that’s how you know what power level you’re riding in. Now, the readouts are off-white in color with the background being black. The readouts are fairly easy to see in bright light because the LCD is transflective. When you click in, the display will also become backlit for a moment, so it’s easy to see in dark riding conditions as well. The BLOKS display panel is definitely on the smaller side compared to Bosch, Yamaha, and Shimano. You don’t get any feedback about average speed, max speed, trip distance, or even odometer. The five 20% battery bars are much less precise than a full one-percentage increment readout and there’s no dynamic range estimator. Still, the smaller physical size leaves more cockpit space for mounting a phone or Garmin device… and you can charge or maintain on the go by connecting to the Micro-USB port just below the display. Going back to the quiet motor and hidden battery design, perhaps this display will go unnoticed by fellow riders or be less provocative at the bike rack. You cannot easily remove it, nor can you swivel it once it’s tightened down. On the left edge of the control pad there’s also a walk mode button (which is useful if you get a flat or encounter a steep gnarly section of trail), along with a lights button. You can hold the lights button in for several seconds and then click up or down on the main screen to change units from miles to kilometers and back. Note that the light button is only really relevant if you purchase the aftermarket MonkeyLink compatible lights. And on that note, the rear light interface could also be used for a compatible fender. One final consideration about the headlight is that it is not aim-able. It cannot be positioned up or down, it just points ahead based on the head tube angle and stem angle of the bike itself… which is a bit up for this bike due to the longer travel fork. it does, however, point from side to side as you steer the bike.

Not everyone needs the additional speed or gears on offer here, on many mountain bike trails it’s technically not even allowed, but the E-STREAM EVO 45 AM does a great job creating a unique and fun experience. Whether you’re commuting, riding on private land, or exploring OHV trails, it’s capable and durable. Yes, this product will also weigh more and cost more than some of its Class 1 competitors, but the high-capacity battery is part of what makes it so capable and special. I see and appreciate the many ways that BULLS has improved this product over the past year, and am getting good feedback from their dealer network. The North America leadership team is proactive and supportive to them, which means good customer service for you. They are one of the first brands to approach me about reviews and they have invested a lot into shows like Interbike and demo ride events throughout the year. The tires on this bike are tubeless ready, and that’s one way to cut down on the heavier build. Some people might want to explore a single sprocket up front given the 11 speed cluster in the rear (for even more weight savings and simplicity). BULLS is a larger company with international distribution and a good reputation, I welcome real-world feedback in the comment section below and invite you to connect with others to share more in the Bulls electric bike forums as well.

Pros:

  • Brose motors tend to be very smooth and quiet, especially the T and TF (which this ebike uses), there’s a Gates Carbon belt drive inside that reduces vibration by transferring between a planetary geared motor and the spindle for output
  • Both the motor and battery pack are hidden within the downtube and bottom bracket, this is one of the stealthiest electric mountain bikes on the market right now
  • BULLS did an excellent job matching accessories with this ebike, the dark frame color blends perfectly with shifter cables, brake lines, the suspension fork, hubs, spokes, and rims
  • The bike is available in four frame sizes to maximize fit and rider control, notice the angled top tube which lowers standover height (important if you have to jump off on an angled slope)
  • Both wheels offer quick release for easy trail maintenance, the connect with sturdy thru-axles that support wider boost hub spacing and the large 2.8″ plus sized tires
  • With longer 150mm suspension travel, this ebike offers all-mountain performance including climbs and descents, the larger tires provide increased traction, stability, and comfort while reducing deflection
  • Extra large 203mm hydraulic disc brakes with quad piston calipers provide the necessary stopping power for higher speeds, steep descents, and increased weight
  • Higher speeds tend to sap batteries quicker (wind resistance becomes a factor above 20mph) so it’s great that BULLS has included a custom ~650 watt hour battery, it’s significantly larger than the average 500 watt hour packs from other ebikes right now
  • I think it’s neat that they included long plastic slap guard and an adjustable kickstand, the stand may bounce around and rattle on the trail but really comes in handy if you commute and park the bike at public racks or in your garage
  • As with many other BULLS mountain bike products for this season, it’s cool that this one comes with MonkeyLink light/fender magnetic mounting points, they would be especially useful for commuting or riding to and from trails in morning/evening conditions
  • I love that the downtube has bottle cage bosses, BULLS includes a magnetic MonkeyLink bottle mount preinstalled, but you must purchase the $45 bottle separately
  • The BLOKS display panel is compact but easy to read in bright conditions because it’s transflective but also backlit for dark conditions, there’s a Micro-USB port built into the bottom for charging accessories
  • The rims and tires are tubeless ready, which allows you to reduce weight and run lower pressure without pinch flats, I like Schwalbe tires and noticed that these ones have ADDIX speed grip for higher speed riding
  • The drivetrain appears to be well protected against rock strikes and drops because the chainring has a large alloy guard, the front derailleur functions as a chain guide, and the rear derailleur has Shadow+ a one way clutch to reduce slaps and bouncing (just click the little gray leverl into the up position to enable or click down for easier shifting and wheel removal)
  • With the 11 speed cassette and 2 speed chainring setup, you get plenty of pedal options for climbing and urban conditions
  • The new generation of E-STREAM models have a tough rubberized shield along the base of the battery and front of the motor casing, older ones had a narrower foam shield that didn’t seem as durable
  • On the one hand, I really appreciate how fast the battery charger is (5 amps vs. 2 amps on most competitors) because this ebike comes with a high capacity battery, and I like the quick-release magnetic charging cord… but on the other hand, the charger case is larger and heavier than average and will take up more space in your backpack
  • The motor starts and stops very quickly and can support 120+ RPM pedaling so it doesn’t feel like you lose power when downshifting into a hill climb, it responds a bit more to torque which feels natural and empowering but can surge a bit with each stroke compared to Bosch
  • I like that the battery is locking for security (and using premium ABUS cores and keys) and that it’s removable to reduce weight if you’re mounting the bike on a car rack, since the bike only comes in high-step diamond style there’s plenty of space to hang from most car racks without a crossbar adapter, if that’s what you’ve got vs. a platform rack

Cons:

  • I feel like this electric bike would be a good candidate for a seat post dropper, it’s the one upgrade I didn’t see but you could always get one aftermarket
  • Some of this is personal preference, but I really don’t love the curved saddle or cage style pedals stocked here, the Ergon ergonomic grips are great though
  • The display panel doesn’t list as readouts, isn’t as large as most competitors, and isn’t removable… but it still works well for this type of application
  • I like the MonkeyLink concept, being able to add and remove lights that will run off of the main ebike battery easily, but the price of the lights ($170 for a front and rear light) just seems high
  • The positioning of the headlight is good in many ways, it’s up high, points where you steer, and is sprung vs. a lot of suspension fork arch mounted lights I see that can bounce around, but you cannot aim it up and down… it’s set in one position based on the head tube and stem angle
  • As fun as it is to ride at ~28mph on flats, my experience is that this drive system climbs about the same as the standard Class 1 Brose T, S, and S Mag, and since it’s a Class 3 speed pedelec, it’s not going to be legal on as many mountain bike trails where 20mph is the limit
  • Unlike the Bosch PowerTube, which has a two-step battery removal process, this custom BULLS + BMZ battery pack sort of just tumbles out as you unlock it… so be careful to stabilize the bike and support the pack when unlocking, also keep track of the magnetized battery charging port cover because it doesn’t have a leash and could be easily set down and lost
  • Unlike Bosch and some of the nicer Yamaha display panels, this setup lacks a range estimator and battery percentage readout which makes it difficult to gauge distance at times, you just have a five bar battery info-graphic
  • No shift sensing technology with the Brose motor controller (only Bosch really offers this right now), but the advanced multi-sensor assist makes shifting smooth if you just ease off of the pedal pressure a bit while shifting
  • I was surprised to find out that the bike weighs 56 lbs because many other premium FS ebikes are in the 52-54 lb range, but this one does have that higher capacity battery, thru-axles, and plus sized tires

Resources:

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  • MSRP: $5,999
  • MODEL YEAR: 2019, 2020

A light 42lb full suspension cross country electric mountain bike with premium blacked-out paint job and ALL accessories, comfortable carbon fiber main frame (alloy rear triangle), the battery and motor are built into one removable drivepack that can be swapped out for an optional storage cover so you can ride as an even lighter acoustic bike. High quality Fox air suspension front and rear, Boost hub spacing provides sturdy spoke bracing…...

BULLS ALPINE HAWK EVO Review

  • MSRP: $5,799
  • MODEL YEAR: 2020, 2021

One of the lightest electric bikes I've tested; carbon fiber frame, fork, and seat post reduce weight while dampening vibration for comfort; available in three sizes with matching crank arms, stem, and handlebar for optimal fit. Premium hydraulic disc brakes are easy to actuate in the drops or hood handlebar position,…...

BULLS DESERT FALCON EVO Review

  • MSRP: $6,299
  • MODEL YEAR: 2020, 2021, 2022

A solidly built aluminum alloy road bike with carbon fiber for and seat post to dampen vibration, available in three frame sizes for optimal fit, large network of dealers in the US and Canada for fitting and post-purchase maintenance. 28mph Class 3 speed pedelec performance with the 4th generation Bosch Performance Line Speed motor,…...

BULLS E-CORE EVO AM Di2 27.5+ Review

  • MSRP: $6,899
  • MODEL YEAR: 2019, 2020

A full suspension electric all-mountain bike with a dual battery setup, 150mm travel, large 27.5" plus sized tires, and Boost hub spacing in the rear for strength, made in three frame sizes. Fox Float suspension in the front with great stanchions, Fox Float also here in the…...

BULLS TWENTY9 EVO 1 Review

  • MSRP: $3,899
  • MODEL YEAR: 2019, 2020

A capable and and well-balanced hardtail mountain bike with 29” tires, hydraulic disc brakes, high capacity battery, and a reliable Bosch Performance Line CX Motor. Great Kenda Ace of Pace tires, 29” with 30-50psi, they give you some great float…...

BULLS TWENTY8 E45 Review

  • MSRP: $4,599
  • MODEL YEAR: 2019, 2020

A high-speed, feature-complete, urban electric bike with fenders, front suspension fork, suspension seat post, integrated lights and a nice modern rack. Available in 5 sizes including high-step and mid-step frame styles with a gel saddle and…...

2019 BULLS E-STREAM EVO AM 4 27.5+ Review

  • MSRP: $6,299
  • MODEL YEAR: 2019, 2020

A full suspension all mountain bike with plus size tires, hydraulic disc brakes, high capacity battery, and a lightweight Brose S Mag mid-drive. 27” x 2.8” plus sized tires provide increased traction, great float, and improved comfort while…...

BULLS CLOSSLITE EVO Review

  • MSRP: $4,899
  • MODEL YEAR: 2020

A premium hybrid electric bike available in three frame styles and three sizes, impressive 180mm hydraulic disc brakes with quad piston caliper up front for improved power and cooling, pre-wired for a seat post dropper, integrated LED lights with side view for maximum visibility, reflective puncture resistant tires from Schwalbe. Upgraded Ergon locking grips, gender specific Velo saddle (that felt very comfortable), sleek air suspension…...

BULLS E-STREAM EVO AM 3 27.5+ Review

  • MSRP: $5,799
  • MODEL YEAR: 2019, 2020

A full suspension all mountain bike with plus size tires, hydraulic disc brakes, high capacity battery, and a lightweight Brose S Mag mid-drive. 27” x 2.8” plus sized tires provide increased traction, great float, and improved comfort while…...

BULLS MONSTER E S Review

  • MSRP: $4,899
  • MODEL YEAR: 2019, 2020

A fat tire electric trail bike with a RockShock Bluto suspension fork, remote lockout, 11-speed Shimano Deore XT drivetrain with Shadow Plus clutch, robust skid plate and alloy drivetrain guides. High-torque Bosch Performance Line CX motor with eMTB drive mode, sand and snow capable if…...

BULLS E-CORE EVO EN Di2 27.5+ Review

  • MSRP: $8,499
  • MODEL YEAR: 2019, 2020

A full suspension electric all-mountain or enduro mountain bike with a dual battery setup, 180mm travel, large 27.5" plus sized tires, and Boost hub spacing for strength, made in three frame sizes. RockShox in the front with great stanchions, Fox Float X2 in the rear, Shimano STePs…...

BULLS LACUBA EVO LITE Review

  • MSRP: $4,799
  • MODEL YEAR: 2020

One of the most popular models in the Bulls ebike lineup, it comes in four frame sizes and three styles (high-step diamond, mid-step, and step-thru wave), motor and battery weight are low and center, battery is very high capacity at 37.5v 20ah. Extremely stealthy, the drive system and battery are almost completely hidden on this frame and…...

BULLS SIX50 EVO AM 4 SRAM Review

  • MSRP: $7,899
  • MODEL YEAR: 2019, 2020

A premium all mountain electric bike with 150mm Fox air suspension, SRAM XX1 Eagle 12-speed drivetrain, Bosch Performance Line CX high-torque motor, and Magura MT7 hydraulic disc brakes with adjustable CARBOTeCTURe levers. Wider Boost hub spacing provides a stronger bracing angle for the spokes and additional room…...

BULLS ICONIC EVO TR 1 Review

  • MSRP: $5,099
  • MODEL YEAR: 2019

A comfortable full suspension urban electric bike with adjustable upright body position, wider Boost hub spacing and sturdy thru-axles front and rear, high volume tires offer comfort and stability, they don't have reflective sidewalls but they do offer puncture protection. Totally blacked out aesthetic, everything matches and looks very cool, wires and cables are internally…...

BULLS GRINDER EVO Review

  • MSRP: $4,999
  • MODEL YEAR: 2019, 2020

A high speed gravel grinder electric bike, complete with flared drop bars, puncture resistant studded tires, and a paint-matched spring suspension fork offering preload adjust and lockout. Excellent weight distribution, beautiful Bosch PowerTube battery integration that frees up the main triangle for…...

BULLS AMINGA EVA TR 2 Review

  • MSRP: $4,899
  • MODEL YEAR: 2019, 2020

A women's specific full suspension electric mountain bike with high quality hardware from Shimano, Magura, Fox, Schwalbe and Bosch, available in two frame sizes with sloped top tube for easy mounting and stand over. Highly adjustable air shocks are lightweight, allow you to sag the frame to match your…...

BULLS STURMVOGEL EVO Street Review

  • MSRP: $3,999
  • MODEL YEAR: 2019

Sporty urban electric bike available in metallic grey or glossy white, premium fenders and front rack add utility, mounting points for a rear rack and bottle cage, quiet Brose Drive T mid-motor. Beautiful stitched ergonomic grips and leather saddle from Velo, unique brown tires with whitewall sides…...

BULLS Cross Lite EVO Review

  • MSRP: $4,399
  • MODEL YEAR: 2019

One of the most popular BULLS electric bikes, available in three frame styles and four frame sizes, fully-integrated Bosch PowerTube battery looks great and improves balance. Powerful Bosch Performance Line CX motor offers high torque for heavy loads and capable climbing,…...

BULLS CROSS E8 Review

  • MSRP: $3,199
  • MODEL YEAR: 2018, 2019

A feature-complete city ebike running the new Bosch Active Plus motor, it's lighter, more efficient, and quieter than previous Active Line iterations, and the compact design is very hidden. Integrated lights and reflective tires keep you safe, the unisex color scheme is professional and…...

BULLS CROSS MOVER SPEED Review

  • MSRP: $3,999
  • MODEL YEAR: 2018, 2019

A sporty speed pedelec with beautiful motor, battery, and able integration, the grey and black color scheme help the drive systems blend in, three frame styles to choose from (wave, step-thru, diamond). Bosch Performance Line Speed motor offers ~28 mph support, shift detection, and 120 RPM pedal…...

BULLS E-STREAM EVO AM 4 Review

  • MSRP: $5,399
  • MODEL YEAR: 2018

A high-end, full suspension, electric mountain bike, with the high-torque Brose S mid-motor, and a high-capacity 37 volt 17.5 amp hour Lithium-ion battery, excellent weight distribution with hidden drive systems. Rugged all-mountain performance with 150 mm RockShox air suspension front and rear, 15 mm and…...

BULLS URBAN EVO Review

  • MSRP: $4,399
  • MODEL YEAR: 2018, 2019

One of the stealthiest 28 mph urban electric bikes I have seen, the Bosch Powertube battery pack is completely hidden inside the downtube and the compact black motor casing blends perfectly with the matte black paint job. The mid-motor is angled up to blend into downtube visually, increase ground clearance, and shorten…...

BULLS SIX50 EVO AM 4 Review

  • MSRP: $7,399
  • MODEL YEAR: 2018, 2019

A top-end all mountain electric bike with 150 mm suspension from Fox, Shimano Deore XTR 11-speed drivetrain, Bosch CX high-torque motor, and Magura MT Trail hydraulic disc brakes. Wider Boost hub spacing offers a strong bracing angle for the spokes and room for…...

BULLS LACUBA EVO E45S Review

  • MSRP: $3,899
  • MODEL YEAR: 2018, 2019

A high-speed 28 mph commuter style electric bike that comes in four frame sizes and three styles (high-step, mid-step, and step-thru), it offers excellent weight distribution (motor and battery are positioned low and center). Beautiful aesthetic with hidden wires, an internally mounted battery, and a smaller motor casing, the…...

BULLS E-CORE Di2 FS 27.5+ Review

  • MSRP: $5,999
  • MODEL YEAR: 2018, 2019

A full suspension electric trail or enduro mountain bike with 150 mm travel, large 2.8" plus sized tires, and Boost hub spacing for strength, made in three frame sizes. All-black frame, fork, and anodized RockShox stanchions makes for a mean look, Shimano STePs E8000…...

BULLS LACUBA EVO E8 Review

  • MSRP: $3,799
  • MODEL YEAR: 2018

One of the most popular models in the Bulls ebike lineup, it comes in four frame sizes and three styles (high-step diamond, mid-step, and step-thru wave), motor and battery weight are low and center. Extremely stealthy, the drive system and battery are almost completely hidden on this frame and…...

BULLS MONSTER E FS Review

  • MSRP: $5,499
  • MODEL YEAR: 2018, 2019

Top of the line, full suspension, fat tire electric trail bike with RockShock Bluto and Monarch air, remote lockout for the fork, 11-speed Shimano Deore XT drivetrain with Shadow Plus clutch, robust skid plate and alloy drivetrain guides. High-torque Bosch Performance Line CX motor with eMTB drive mode, sand and snow capable if…...

BULLS SIX50 EVO AM 3 Review

  • MSRP: $5,499
  • MODEL YEAR: 2018, 2019

An all-mountain style electric bike with longer travel 150 mm air suspension from RockShox, an internalized downtube battery from Bosch, and three frame size options. Fatter 2.8" plus sized tires provide increased traction, reduced deflection, and improved comfort while remaining…...

BULLS CRUISER E Review

  • MSRP: $3,299
  • MODEL YEAR: 2018, 2019

A feature-complete cruiser style electric bicycle with paint-matched fork, fenders, rear rack, chain cover, and motor casing, available in three frame sizes with adjustable stem for good fit. Large sprung saddle, puffy stitched grips, swept back handlebars, and the deep step-thru frame make…...

BULLS AMINGA TR 1 Review

  • MSRP: $4,299
  • MODEL YEAR: 2018, 2019

A full suspension, cross country style, electric mountain bike made just for the ladies with shorter reach, available in two smaller size options, features a turquoise fuchsia colorway. Sturdy Suntour XCR 34 air suspension fork with remote lockout for easy transitions from rough…...

BULLS TWENTY4 E Review

  • MSRP: $2,899
  • MODEL YEAR: 2018, 2019

A tough, sporty looking, high-quality, kids electric bike that can reach ~15.5 mph with four levels of pedal assist, smaller wheels keep the frame low and approachable. Premium accessories including tires from Schwalbe, a Shimano Altus 8-speed drivetrain, and Tektro hydraulic disc…...

BULLS CROSS E Review

  • MSRP: $2,799
  • MODEL YEAR: 2017, 2018, 2019

Well priced considering the quality Bosch-made electric drive system, four frame size choices, and three frame styles (high, mid, and low-step). Integrated LED lights and premium Continental tires with reflective sidewall stripes help to keep you…...

BULLS E-STREAM EVO FS 2 27.5 Plus Review

  • MSRP: $4,099
  • MODEL YEAR: 2017, 2018

One of the cleanest looking full suspension cross country electric bikes I've reviewed, the battery and motor are built into the frame and match the matte black paint perfectly. Extra large battery capacity for longer rides, EnergyBus magnetic charging standard works on or off…...

BULLS SIX50 E 1.5 Review

  • MSRP: $3,099
  • MODEL YEAR: 2017, 2018, 2019

A hardtail trail ready e-bike with comfortable plus sized tires and a spring suspension fork (with lockout), sturdy tapered head tube, rigid thru-axles, and Boost up front. Capable as a commuting platform if you prefer a mountain bike vs. hybrid or city…...

BULLS CROSS LITE E Step-Thru Review

  • MSRP: $4,099
  • MODEL YEAR: 2017, 2018

An active, sporty looking, commuter style electric bike with low standover height, available in three frame sizes to improve fit and comfort. High-end drivetrain and motor systems, you get eleven gears with a tough mountain bike level…...

BULLS SIX50+ E FS 3 Review

  • MSRP: $4,699
  • MODEL YEAR: 2017, 2018

An all-mountain electric bike with plus sized tires for improved stability, traction and comfort, 150 mm air suspension with compression and rebound adjust. Battery and motor mount design are tighter than older Bosch systems, weight is kept low…...

BULLS E-STREAM EVO 45 FS Review

  • MSRP: $5,199
  • MODEL YEAR: 2017, 2018

A high quality full suspension e-mountain bike that's also a speed pedelec (capable of 28 mph top speeds), solid hydraulic disc brakes, wide thru-axles with Boost Technology. Adjustable 150 mm RockShox suspension front and rear, four-bar rear swing arm to reduce brake…...

BULLS E-STREAM EVO 3 Carbon 27.5 Plus Review

  • MSRP: $4,599
  • MODEL YEAR: 2017

A Carbon fiber electric cross country mountain bike with premium components and ultra-integrated motor and battery system, excellent weight distribution. The Brose motor is quiet and responsive offering up to 90 Nm of torque output,…...

BULLS DAIL-E GRINDER Review

  • MSRP: $5,799
  • MODEL YEAR: 2017, 2018

One of the first Gravel Grinder style electric bikes to make it to America! Made with premium components, high performance lights and a purpose built frame in three sizes. Capable of high speed 28 mph performance, the Bosch centerdrive motor measures bike speed, pedal…...

BULLS SIX50 E 2 STREET Review

  • MSRP: $3,899
  • MODEL YEAR: 2017, 2018, 2019

A fully equipped speed commuter capable of 28 mph operation, running on the proven Bosch Performance mid-drive motor and updated 500 watt hour Samsung battery. Extra large 203 mm hydraulic disc brakes offer smooth solid stops without requiring exorbitant hand…...

2017 BULLS LACUBA EVO E8 Review

  • MSRP: $3,999
  • MODEL YEAR: 2017

A versatile urban electric bike well suited to commuting, touring and trekking because of its efficient mid-drive motor and larger than average battery capacity, durable internal gearing and belt drive. Available in five frame sizes and three frame styles including wave, mid-step and high-step diamond…...

BULLS E-STREAM EVO FS 3 27.5 Plus Review

  • MSRP: $4,699
  • MODEL YEAR: 2017, 2018

A stealthy full suspension all-mountain electric bike with longer travel 150 mm suspension, fully adjustable air fork by RockShox, color matched to frame. Larger 37 volt 17.5 amp hour battery pack to assist with steeper climbs and longer…...

2017 BULLS MONSTER E FS Review

  • MSRP: $5,299
  • MODEL YEAR: 2017

Full suspension fat bike with a high quality mid-drive motor from Bosch and their updated 500 watt hour battery pack for extended range. Cool fluorescent paint job that extends all the way through the fork, rear shock housing,…...

BULLS LACUBA EVO E45 Review

  • MSRP: $4,399
  • MODEL YEAR: 2017, 2018, 2019

Available in four frame sizes, two styles (high-step and mid-step) with an adjustable stem, active-comfort saddle and ergonomic grips, this bike can fit well and feel good at speed and over long distances. Capable of 28 mph top speeds, this is a Class 3 electric bike with an…...

BULLS E-STREAM EVO FS 3 27.5 Review

  • MSRP: $4,699
  • MODEL YEAR: 2016

An all-mountain electric bike with beautifully integrated battery, motor and display... it blends in more than most other e-mountain bikes I've tested and runs quiet. Sturdy 15 mm thru axle in the front and 12 mm axle in the rear…...

BULLS SIX50 E FS 3 RSI Review

  • MSRP: $4,599
  • MODEL YEAR: 2016

A loaded full suspension mountain bike with premium electric drivetrain from Bosch offering 75 Nm of climbing torque with the CX motor and a 400 watt hour Samsung battery. RockShox air suspension with 120 mm travel front and rear for solid trail or all…...

2017 BULLS MONSTER E S Review

  • MSRP: $4,299
  • MODEL YEAR: 2016, 2017

Premium hardtail electric fat bike with all the fixins, highlights include rear rack bosses, tubeless-ready tires and punched out rims, RockShox air fork with remote lockout and high torque Bosch CX motor. Quality 180 mm hydraulic disc brakes from Shimano for excellent stopping power and modulation, impressive…...

BULLS OUTLAW E45 Review

  • MSRP: $3,999
  • MODEL YEAR: 2016

A sporty looking, fairly comfortable speed pedelec capable of ~28 mph top speeds, it's running on an optimized geared hub motor design with heat pipe technology for maximum performance. Unique mid-mount battery box fills the main frame triangle keeping weight low and centered while…...

BULLS STURMVOGEL E EVO Review

  • MSRP: $3,699
  • MODEL YEAR: 2016

A beautifully designed urban electric bike painted white for visibility and modern appeal, white walled tires, reflective sidewall stripes, LED lights. Extra sturdy and durable thanks to a 15 mm thru-axle on the front wheel (with…...

BULLS TWENTY9 E FS 3 RSI Review

  • MSRP: $4,599
  • MODEL YEAR: 2016

A full suspension, Bosch powered, cross country style electric bike with efficient 29" wheels, it's available in three sizes for good fit and would feel taller and larger for riders with long legs but still fits some shorter riders given the angled top tube. Quick release for both wheels ads convenience for fixes and transporting the bike, I love…...

BULLS CROSS LITE E Review

  • MSRP: $3,699
  • MODEL YEAR: 2016

Fully loaded urban electric bicycle with great accessories for commuting including an aluminum rear rack, full length fenders with mud flaps and integrated LED lights. Relatively light weight at under 50 lbs, this is due in part to the nicer…...

BULLS E-STREAM EVO FS Enduro 27.5 Review

  • MSRP: $5,399
  • MODEL YEAR: 2016

An enduro style full suspension electric mountain bike with longer 160 mm suspension travel, seat post dropper, 27.5" wheelset and premium hydraulic brakes. Downtube-integrated battery pack is out of sight and keeps weight low and centered across the…...


Comments (11) YouTube Comments

George
6 years ago

Hi court sorry to post here but i have checked on the forums regarding the haibike FLYON system (cant see any information on it) have you had a chance to ride on this yet? I am putting down a deposit on this bike for a delivery in the middle of next year. Many thanks if you can help.

  Reply
Court
6 years ago

Hi George! I haven’t covered it at all yet, just saw one in a case at Interbike in Reno. Haibike recently put out a press release that it has been delayed, which you might have already caught in the forums. More info here, hope you’re doing well! I’m excited to hear your thoughts when you get it :D

  Reply
Mike Milton
6 years ago

Hi, I’m comparing the EVO 45 AM to the EVO AM 4 that you reviewed on Feburary 2, 2018. They seem very similar. Obviously one is a class 3 while the other is a class 1. However, I’m curious about the following:

  1. What do the differences in geometry measuements mean in terms of comfort and performance? I’m really interested in comfort more-so than performance.
  2. What’s the big difference between the Brose Drive TF and S (Sport)? They seem to have the same specs. Does the TF replace the S because it’s a model ’19 vs ’18?
  3. Why the huge difference in estimated min and max range?
  4. When will the 45 AM be available for sale in Northern California? I have contacted one of your recommended dealers. They’ve never heard of it. They are supposed to get back to me after they ask the manufacturer. I suspect they can’t find out because it’s been a week.

Thanks,
Mike.

  Reply
Court
6 years ago

Great questions, Mike! I have a fairly generic answer for you and invite others to chime in… but I think the biggest opportunity is going to be in speaking with a dealer, especially about fit. Being able to visit a shop, stand over one of the models, and get measured will make a big difference in terms of comfort and performance. There are many variables, and some have to do with the type of riding you wish to do. I’ve met people who prefer small frames because it improves a sense of control (especially on road bikes) but that introduces the potential for toe collision with the front wheel when turning and is less aerodynamic if you’re more upright. Lots can be changed just by swapping the stem and handlebar. As far as motors, the S is lighter and more efficient than the T and TF. Brose hadn’t provided me with perfect information at the time of review but I’ve recently created a forum post trying to clarify things. As for the last question, my range estimates are just incorrect here. The faster ebikes tend to use energy more quickly when all else is held constant. I often pull from manufacturer websites and mix in dynamic range calculations from the bikes themselves… but Brose systems don’t always offer that. Depending on the terrain, your weight, even the tire pressure, results may vary. I’d lean more conservative and I welcome your feedback on range if and when you actually buy and test. I apologize for the inconsistency year over year. I don’t usually go back and fix or update things because it can become a huge time sink and there are sometimes variables that change from the manufacturers. It’s just inconsistent and I apologize for how confusing it is in this case especially.

  Reply
Phil Mc
6 years ago

Hi Court, just catching up on some of your Bulls reviews and see reference again that the MonkeyLink headlight is not aimable. I purchased the MonkeyLink 100 Lux headlight/taillight set and **the headlight does adjust vertically via an allen screw on the underside**. Don’t know if this is a feature they’ve added but catch this, I didn’t read the instructions and just popped them on (note the light switch should be off when installed) and was disappointed to see the light hitting the wall about 9′ up. Thinking “this sucks” but at the same time “this can’t be right” I pulled the light and found the set screw underneath. (I can send you a jpg of the adjustment instructions from the manual if you like) Made the appropriate adjustment and now have lights that work with the Bulls display switch. Not happy about the price but my dealer did discount it 20%. Haven’t been riding my 2018 Six50 AM 4 (BroseS) much in Salt Lake this winter but am super pleased with it every time I do. I would like to have the class III speed but like the quiet torque of my BroseS. Phil

  Reply
Court
6 years ago

Hey, Phil! Perfect timing… I just filmed the E-Stream EVO AM 3 and 4 today for 2019 model year and discovered the same aimable adjustment bolt on the interface of the headlight. I think that I was simply wrong, and hand’t dug deeply enough into the headlight when I made these comments, but the updated reviews will get it right. Thanks again for pointing this out here. I would love it if you shared a picture and a short writeup in the BULLS forums about this, because others may not realize that it’s adjustable. Your comment here is very appreciated as well :)

  Reply
Shortcurit
5 years ago

Purchased estream evo 45 am for wife 53 years young 5’2″ on 41 frame bike. I was on a trek y bike. I was blown away by what she was able to do with this bike. At top of one hill she said this is awesome you have got to go back and ride that on this. so I did. No mountain just a nice hill that left me sucking wind at top on mine. I was very impressed. Smooth power delivery, plenty of torque and not feeling like I needed a break at top. loose gravel and sand rides on top no problem. Where my smaller tires were digging in and loosing control. It is a blast to ride. Felt no drag from motor at any time. Very smooth if ridden with power off as well. Well built quality through out. No disappointments from us. Another one is on order so maybe I’ll be able to keep up with her when it gets here. Thank you Bulls for bringing this one to the USA!! GREAT review from EBR as well.

  Reply
Court
5 years ago

Hey, that’s awesome! Sounds like you’ve got a fun wife, hope you two get some more great rides in when your ebike arrives. Thanks for sharing the comment and short story about her first experience with that hill, it’s amazing what these things can do, right?!

  Reply
Shortcurit
5 years ago

Yes it is amazing what they can do. The older we get sometimes what used to be fun looses it appeal. Ebikes have amped up the fun factor in this household for sure. Thank you Court for your reviews. You are doing an outstanding job reviewing bikes and bringing awareness to what Ebikes are all about. FUN! Enjoy life. Be safe in your adventures.

Travis Stratton
4 years ago

I bought this bike recently and I live in central California. I wish there was a bike shop in the Fresno area that sold and serviced these bikes. They dropped shipped it to a random bike shop. The shop put it together and gave it to me with no manual or any clue about proper use. They hadn’t seen Bulls Products before either. I had to go hunting for the manual which should have been sent to me with an invoice if a hard copy doesn’t come with the bike. The bike itself is great. Class 3 is the way to go because 20mph bottleneck is just way too slow for class 1. I can use this bike for anything. Hopefully the Brose motor holds up. My first time using it I peddled a little hard up a small hill and the motor belt seemed to slip about a half a pedal crank. Hopefully that was a one time occurrence. I haven’t pressed as hard since then. Also, I’m a little less than 5’9 and I think I would have got the next side up frame size. I got a 44cm The bike is high quality.

  Reply
Court
4 years ago

Hi Travis, it sounds like you’re enjoying the bike and I appreciate your comment here. Bummer that the shop didn’t get you the manual… it sounds like you must have asked? Maybe they lost it with all of the craziness going on in the bike space this summer. Most shops have been very busy, and it sounds like this was their first BULLS or maybe first ebike even? Perhaps you can reach out to BULLS directly and have one mailed or get a link to a digital version. I don’t know if one exists or not, but I do have contacts within BULLS that I could try to coordinate if you want. Just reply again and I’ll be able to copy your email if you include the exact make, model, and shop where you bought the bike ;)

  Reply

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