BULLS TWENTY4 E Review

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Bulls Twenty4 E Electric Bike Review
Bulls Twenty4 E
Bulls Twenty4 E Bosch Active Line Plus Mid Drive Motor
Bulls Twenty4 E Bosch Powerpack 500 Electric Bike Battery
Bulls Twenty4 E Rubber Grips Display Panel And Bell
Bulls Twenty4 E Bosch Purion Small Ebike Display
Bulls Twenty4 E Suntour Xct Junior Suspension Fork
Bulls Twenty4 E 8 Speed Shimano Altus Derailleur
Bulls Twenty4 E 165 Mm Crank Arms 44 Tooth Chainring
Bulls Twenty4 E Schwalbe Black Jack 24 Inch Tires
Bulls Twenty4 E Kids Electric Bike
Bulls Twenty4 E Family Riding Electric Bikes
Bulls Twenty4 E Bosch Four Amp Ebike Battery Charger
Bulls Twenty4 E Electric Bike Review
Bulls Twenty4 E
Bulls Twenty4 E Bosch Active Line Plus Mid Drive Motor
Bulls Twenty4 E Bosch Powerpack 500 Electric Bike Battery
Bulls Twenty4 E Rubber Grips Display Panel And Bell
Bulls Twenty4 E Bosch Purion Small Ebike Display
Bulls Twenty4 E Suntour Xct Junior Suspension Fork
Bulls Twenty4 E 8 Speed Shimano Altus Derailleur
Bulls Twenty4 E 165 Mm Crank Arms 44 Tooth Chainring
Bulls Twenty4 E Schwalbe Black Jack 24 Inch Tires
Bulls Twenty4 E Kids Electric Bike
Bulls Twenty4 E Family Riding Electric Bikes
Bulls Twenty4 E Bosch Four Amp Ebike Battery Charger

Summary

  • 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 brakes that are easy to pull for small hands
  • Excellent weight distribution for improved handling and balance, the motor and battery pack are well protected and come with a fantastic two year warranty
  • Integrated lights can keep small riders seen by cars day or night but it would be nice if they automatically activated and stayed on, the top speed cannot be raised, it's expensive

Video Review

Introduction

Make:

BULLS

Model:

TWENTY4 E

Price:

$2,899

Body Position:

Forward

Suggested Use:

Trail, Mountain, Youth

Electric Bike Class:

Pedal Assist (Class 1)
Learn more about Ebike classes

Warranty:

2 Years Motor and Battery, 5 Years Frame

Availability:

United States, Canada

Model Year:

20182019

Bicycle Details

Total Weight:

45.3 lbs (20.54 kg)

Battery Weight:

5.7 lbs (2.58 kg)

Motor Weight:

7.05 lbs (3.19 kg)

Frame Material:

7005 Aluminium Alloy

Frame Sizes:

12.6 in (32 cm)

Geometry Measurements:

32 cm Measurements: 13" Seat Tube, 19.75" Reach, 24" Stand Over Height, 23" Width, 64.5" Length

Frame Types:

High-Step

Frame Colors:

Matte Black with Green and Blue Accents

Frame Fork Details:

SR Suntour XCT-Junior L 24" Spring Suspension, 80 mm Travel, Preload Adjust, 100 mm Hub Spacing, 9 mm Skewer with Quick Release

Frame Rear Details:

135 mm Hub Spacing, 9 mm Skewer with Quick Release

Attachment Points:

Rear Rack Bosses, Fender Bosses

Gearing Details:

8 Speed 1x8 Shimano Altus Derailleur, CS-HG31-8 11-34T Cassette

Shifter Details:

Shimano Triggers on Right

Cranks:

Miranda, Aluminum Alloy, 165 mm Length, 44 Tooth Chainring with Alloy Guard

Pedals:

VP-9926, Plastic and Steel Platform, Cage Style

Headset:

Chin Heur 9280BW, Threadless, Internal Cups, 1-1/8" Straight

Stem:

STYX, Alloy, 60 mm Length, 30-Degree Rise, 31.8 mm Clamp Diameter, Two 10 mm Spacers, One 5 mm Spacer

Handlebar:

STYX, Alloy, Low-Rise, 560 mm Length, 25 mm Rise, 9-Degree Bend

Brake Details:

Tektro HD-M286 Hydraulic Disc with 160 mm Rotors, Dual-Piston Calipers, Two-Finger Levers with Adjustable Reach

Grips:

Velo, Flat Rubber, Kraton Black

Saddle:

STYX Child Sized

Seat Post:

Aluminum Alloy

Seat Post Length:

250 mm

Seat Post Diameter:

30.9 mm

Rims:

STYX DDM1, Double Wall, Alloy, 36 Hole

Spokes:

Stainless Steel, 14G Front 13G Rear, Silver with Nipples

Tire Brand:

Schwalbe Black Jack, 24" x 2.1" (54-507)

Wheel Sizes:

24 in (60.96cm)

Tire Details:

30 to 65 PSI, 2.0 to 4.5 BAR, Active Line K-Guard

Tube Details:

Schrader Valve

Accessories:

Velo Clear Plastic Sticker Slap Guard, Flick Bell on Right, Standwell Adjustable Kickstand at Rear, Fuxon DHL-F15 Pro Integrated Headlight, FUXON Comus ML-009EB Integrated Backlight

Other:

Locking Removable Mid-Mounted Battery Pack, 1.7b lb 4 Amp Charger, Maximum 105 RPM Motor Support, ABUS Locking Core

Electronic Details

Motor Brand:

Bosch Active Line Plus

Motor Type:

Mid-Mounted Geared Motor
Learn more about Ebike motors

Motor Nominal Output:

250 watts

Motor Torque:

50 Newton meters

Battery Voltage:

36 volts

Battery Amp Hours:

13.4 ah

Battery Watt Hours:

482.4 wh

Battery Chemistry:

Lithium-ion

Charge Time:

4.5 hours

Estimated Min Range:

37 miles (60 km)

Estimated Max Range:

118 miles (190 km)

Display Type:

Bosch Purion, Fixed, Backlit LCD Control Panel with Integrated Button Pad, (Hold - to Cycle Through Readouts, Hold - and Press Power to Change Units)

Readouts:

Speed, Assist Level (Eco, Tour, Sport, Turbo), Battery Level (1-5), Trip Distance, Total Distance, Estimated Range, Lights

Display Accessories:

Micro-USB Port for Diagnostics and Software Updates Only

Drive Mode:

Advanced Pedal Assist (Measures Wheel Speed, Pedal Cadence and Pedal Torque, Power Output Relative to Pedal Input: Eco 40% 35 Nm, Tour 100% 40 Nm, Sport 180% 45 Nm, Turbo 270% 50 Nm)

Top Speed:

15.5 mph (25 kph)

Written Review

For this review I got some extra help from a young lady named Carla who knew how to ride a bicycle but had never tried an electric bike before. You can see here, her older sister Paula, and her father Victor in the video review above. My big takeaway from this experience was that young kids can have a blast with electric bikes but it’s worth spending some time on the control systems and shifting before setting out. While Carla picked things up extremely quickly and had a blast riding with the lightweight, smoother operating, Bosch Active Plus line motor on the BULLS TWENTY4 E, her older sister required a bit more practice and support to master the Bosch Performance Line CX motor, which feels zippier and can “surge” depending on how you pedal because it’s made for trail and mountain riding. With the TWENTY4 E, a young person can hop on and click the + or – buttons to add and subtract power in order to climb easier, keep up with their older siblings and parents, and feel empowered. This is one of the more premium kid’s electric bikes, and as such, it comes with a higher price tag. For $2.9k, you get one of the highest quality motors, a well-protected battery, integrated lights for safety, and a frame that was custom built for a smaller rider, complete with smaller 24″ wheels vs. 26″+ on adult sized bikes. The stand over height of the frame is roughly 24″ and this is what you can try to match to the inseam of your child. Will they be able to stand over this ~45.3 lb ebike easily? Carla had no issue, and the saddle height is adjustable so as your kid grows, you can keep their leg extension comfortable, even if they start to be more upright vs. leaned forward. One thing you cannot change however, is the limited 15.5 mph top assisted speed. Most full sized adult e-bikes can hit and maintain 20 mph or even 28 mph for Class 3 speed pedelecs. I do wish that you or your dealer could raise the top speed because that could make it easier for young riders to keep up with the rest of the family once they and you feel comfortable. Still, in Europe, almost all electric bikes are limeted to 15.5 mph, so it’s not a big trade-off. And there are some competing youth-oriented models that can only reach ~12 mph such as the Haibike HardFour 4.0 priced at $2.6k.

Driving the BULLS TWENTY4 E is the brand new Bosch Active Line Plus mid-motor. Compared to the older Bosch Active Line, this new motor weighs ~1.5 lbs less, is more compact in size, and offers a full-sized chainring vs. a reduction gear that spins 2.5 times for each crank revolution. In short, there’s a touch less drag when pedaling but chain retention might be slightly lower and response time may also be just slightly slower. I noticed and appreciated the Aluminum alloy chainring guard, which will keep pant legs and dresses snag-free while simultaneously keeping the chain on track. The motor is smooth and quiet but responds near-instantly so there’s no problem with unexpected starts or delayed overpower when it’s time to slow down and stop. Stopping is handled very well on this bike because Bulls opted for 160 mm hydraulic disc brakes with smaller levers that kids can easily grab and pull. Carla seemed to have no issue stopping during our ride and was regularly leading the pack with a huge smile on her face. She also handled gear shifting extremely well, easily going from low gears to start up to the higher gears in order to keep up with the pack. This electric bike is outfitted with a Shimano Altus 8-speed drivetrain and traditional trigger shifters near the left grip. The big button shifts to easier gears (for slow riding or climbing) while the small button shifts to harder gears (for faster riding and descending). One thing that I have always appreciated about the Bosch mid-motors is that they have fancy control systems that can detect user shifting and tell the motor to ease off, which reduces wear on the drivetrain. Considering that many young riders are new at shifting, and may be paying attention to balance and stopping, it’s great that the Bosch system can sort of protect itself and keep the bike from getting worn out prematurely. The motor casing-surround is made from black plastic which blends in with the bike frame. In my opinion, the bike is a bit more masculine in color, but Carla didn’t seem bothered at all by this (never mentioning it) and the fluorescent blue and green accents keep young riders visible to cars. Again, the lights, bright frame color accents, and white accents on the Schwalbe tires are all designed for safety because kids tend to be shorter and more difficult to spot by automobiles.

Powering this “kids” bike is an adult sized battery pack. The Bosch Powerpack 500 offers 36 volts and 13.4 amp hours for a total of ~482.4 watt hours of capacity. It’s enough to go probably 40 to 70+ miles on a single charge depending on how the bike is ridden, how much the rider weighs, and what level of assist is used. This battery can be charged on or off the bike and is filled by a quick 4 Amp charger that weighs ~1.7 lbs. I appreciate that Bosch has stuck with the same battery design since 2013 in the US because it means that many parents might be able to share their own batteries with their kids’ bikes… same goes for the charger. The battery casing has a big open loop at the top, making it easier and safer to carry around. It has an LED charge level indicator built into the left side, so you can tell how full it is when unmounted. And, it uses an ABUS locking core to be secured to the bike frame. ABUS makes high-quality locks and sells a whole range of security locks like u-locks, folding locks, and chains which can be “keyed alike” by using the code printed on the card that comes with your ebike keys. Okay, so one of the few question marks or complaints I have about this electric bicycle is that it’s expensive, which could make it difficult for many parents to justify if they expect their kids to outgrow it. One area where BULLS might have been able to save a couple hundred dollars and also reduce weight by ~0.5 lbs is to utilize the older Bosch Powerpack 400 battery. I think that it would have offered enough range for kids to match parents due to the lower top speed and lighter weight of this bike.

Operating this bike requires a few memorized steps to turn on and adjust power levels using the Bosch Purion compact display panel. This display cannot be removed like it’s bigger brother, the Intuvia, and it doesn’t have a micro-USB charging port built in, but maybe that’s for the best? It means that it’s tougher and less likely to get lost. The four buttons on this display are the power button along the top edge, a plus and minus key on the front left side, and a walk-mode button on the bottom. When you press the power button, the display comes to life very quickly and is faintly backlit so as not to distract but also stay useful when it gets dark outside. Once it’s on, there’s a battery infographic with five bars to designate fill at the top, a speedometer in the middle, a listing of assist levels that change as you press + and – and a couple of sub menus that can be accessed by holding the minus key (trip distance, total distance, and range). The range menu is neat because it updates as you select different levels of power. Other secrets include holding minus and tapping the power button to switch from metric to standard units and light activation which is done by holding the plus key for a few seconds. Considering that this is a kids bike and they nerfed the top speed, I think it would have been cool to make the lights auto-on and constantly on… just to increase safety. The final lower-edge button is for walk mode and you have to tap it and then hold + in order for it to work. This can be a very useful feature for pushing up hills, through grass, or getting home with a flat tire. You can change gears to increase or decrease walk-mode speed. All things considered, once this electric bike has been charged and turned on, it’s easy to use the different levels of pedal assist and reaching the button pad isn’t too much of a stretch, even for small hands. I feel that the plus and minus buttons could be improved by Bosch, to be easier to click near the lower edge and center (because they pivot at an angle) but Carla figured it out and did just fine. For those who wish to upgrade to the larger Bosch Intuvia display, many authorized dealers do offer a replacement/upgrade option which would make the display removable and just bigger (easier to see) with more responsive buttons and more complex menu options to explore.

For families that love cycling together, or kids who are excited to explore town, ride to school, and gain some independence… the BULLS TWENTY4 E offers a balanced, high-quality design with premium components and drive system hardware that should hold up very well. My guess would be that this bike will outlive individual kids as they grow and would maintain resale value or could be passed along to siblings. It’s not quite as bright as the Haibike SDURO HardFour 4.0 model mentioned earlier but the integrated lights and bright accents aren’t bad. I have a preference for Bosch motor systems over Yamaha (which the Haibike uses) but the Active Line Plus is very similar in operation and performance, it just allows the bike to go a bit faster. I love the adjustable kickstand, puncture resistant tires, and simple flick-bell that come standard, and appreciate that Bulls sells through a wide network of dealers who could help with fitting and post-purchase maintenance as well as accessorizing (helmets are important!) I’d like to thank Bulls for partnering with me on this post and the family who agreed to share their experience realtime on camera. Carla and her sister Paula did an amazing job and really let their personalities shine through. It made me smile and I hope that this review and the accompanying specs can help guide you towards the right choice of e-bike or regular bicycle for your special young ones.

Pros:

  • One of the few ebikes available, that I have seen in the USA, designed specifically for kids… it uses smaller 24″ wheels that lower the stand-over height, and a gentler motor with limited 15.5 mph top speed for safety
  • Higher quality components that won’t get worn out as easily, note the Schwalbe tires with puncture protection, Shimano Altus derailleur,
    SR Suntour suspension fork, and Tektro hydraulic disc brakes
  • Using hydraulic disc brakes vs. mechanical disc or linear-pull brakes means that kids don’t have to pull as hard to stop, the levers can also be adjusted to actuate closer to the grips so they are more comfortable if you have small hands
  • Excellent weight distribution because of the mid-drive motor and mid-frame battery pack, this improves handling and stability compared to a hub motor design or rear-rack battery
  • The battery pack and motor are well protected if the bike tips, Bosch is known for producing some of the most reliable electric bike systems on the market today and they offer a two-year comprehensive warranty with lots of dealers who can provide service
  • I’m not sure a rear-rack would fit on this frame without some creative tweaking but there are bosses for attaching such a system on the chainstays, I like the kickstand choice and location, and I appreciate the sturdy chainring guard that will keep the chain from dropping easily while simultaneously protecting pants from getting greasy or snagged
  • Very few mountain bikes have integrated lights but I think the reality of this bike is that it’s more of a “go anywhere and be cool” platform which utilizes some mountain design and hardware (such as the suspension fork and knobby tires), so the lights really improve safety and will help to keep smaller riders safe around automobiles
  • The new Active Line Plus motor from Bosch is very compact and lightweight at ~7.05 lbs vs. 8.8 lbs for the Bosch Performance Line motors, this helps to keep the overall bike weight down at ~45.3 lbs, making it easier to maneuver and ride for young people who might not be as strong
  • Normally, I complain about how the Bosch Purion display panel cannot be removed, but in this case that’s probably a good thing! It’s less likely to get lost by younger, possibly distracted, riders
  • I like that the bike comes standard with a little bell and that they used shorter crank arms and a shorter handlebar to really fit the rider and make it feel comfortable
  • Both wheels are connected using quick release and the battery is also easy to remove, this means you could store it without taking so much space, fix flats easily, or just break it into smaller lighter pieces for easier moving
  • The Bosch centerdrive motor system offers shift detection and this helps to reduce mashing and wear on the chain, rear sprockets, and derailleur… which is going to be extra useful if the young person riding isn’t as experienced at riding bikes, basically, it’s designed to protect itself
  • The locking core on the battery interface is from ABUS and it comes with a card which has a code you can use to purchase locks that will match and that way, you can use the same key for everything on your bike :)

Cons:

  • As much as I love the integrated lights, I feel like they should be programmed to turn on automatically and stay on because kids could easily forget how to activate them (hold the + symbol for a few seconds once the bike is on) or just get excited and ride off before taking that step
  • The official Bulls stock image shows the headlight mounted up on the handlebar which means it won’t bounce as much as if it’s connected to the suspension fork bridge and it will be easier to see… but the demo model I actually reviewed did not have the light up there, instead, it was mounted to the suspension fork
  • Very minor gripe here but the suspension fork isn’t very adjustable, you almost need pliers to twist the plastic caps to dial in rebound and both caps need to be adjusted in tandem to get it working perfectly… it’s more of a set it and forget it type of thing
  • Priced at $2,899 USD, this is not the kind of toy that most kids could save up for and buy themselves, it’s a big investment (and will last) but the kids might outgrow it, compared to adult electric bikes with similar hardware it is priced on target, but kids just don’t have as much money and I can see how some parents might be reluctant to pay so much
  • As kids grow up and become more comfortable on their electric bikes, it would be nice if parents or shops could adjust the maximum assisted speed from 15.5 mph to the full 20 mph that most adult Class 1 models can achieve, that way kids won’t be left behind
  • it only comes in one frame size but the 250 mm seat post offers some good fit adjustment, there’s also only one color which leans towards masculine… but the fluorescent colors help it to stand out vs. being all-black, reflective tires and reflective frame stickers would be nice
  • The Bosch Purion control panel uses big buttons that are easy to reach but I have found that they don’t click as reliably if you press near the lower edge or center because they pivot at an angle towards the screen, this could be confusing, distracting, or frustrating for a younger rider… press near the screen for best results
  • As much as I love the high-capacity Bosch Powerpack 500, this pack does cost more, and it feels like they could have saved some money and just a bit of weight by going with the older Powerpack 400 battery

Resources:

Review Updated On

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  • 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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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BULLS E-STREAM EVO 45 AM Review

  • MSRP: $5,499
  • MODEL YEAR: 2019

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…...

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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…...

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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,…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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,…...

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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…...

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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…...

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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…...

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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…...

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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,…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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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…...

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Comments (5) YouTube Comments

Ed
3 years ago

The girl riding the Twenty4E said that she was on Turbo mode climbing the hill but I could not hear the motor at all. I’ve played that segment back a few times… Cannot hear it.

This is in contrast to the Haibike HardFour 4.0 that my wife has. The Habike has a Yamaha motor that is, to me, loud. I always know when she’s switched on her motor even from some distance away.

I wish Bulls would market the Twenty4E for adults. My wife is 5′ 0″ and would love this EXCEPT for the 15.5 mph max speed. I think Bulls, and Haibike, should market these tiny bikes for petite adult women. They are unlikely to grow any taller and will have the money to buy such a bike.

On the bike that the other girl was riding, I could hear the high-pitched whining of the motor.

  Reply
Court
3 years ago

I agree with your insights, Ed! A smaller ebike with a light and quiet motor could be very appealing to women… and they could probably justify the price because they could keep it longer as you suggest.

  Reply
Ed
3 years ago

And for adult women, that 15.5 mph limit on max speed has to go. None of my wife’s lady friends would put up with that slower limit.

But for kids, I can see why a parent would desire a lower limit on max speed for safety reasons. But as you mentioned in the CONS section, it would be great if it bike can be reprogrammed at the bike shop.

Cynda Vanorsdale
3 years ago

Hey, wondering what kind of trails do you think this bike could handle? I am looking into it and don’t care about the 15 mph top speed. I do back roads and some light single trails mostly old Forest Service roads. Do you think it could handle it or could I upgrade the tires from 2.1 inch to say 2.3?

  Reply
Court
3 years ago

Hi Cynda! My opinion is that the bike is pretty solid and could indeed handle some single track and Forest Service roads. The drive unit and battery are GREAT, and the bike frame and wheels are probably decent, the fork is a bit basic… being spring with no adjustability. But I’d still think it will be reliable. Wider tires would improve comfort a bit, and offer improved stability and traction, so that’s a good part to upgrade if needed. BULLS makes good products, in my opinion, and they have the dealers who provide support and test rides. Try to find one and see how it feels riding! I’d love to hear your thoughts again someday :D

  Reply

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