Bulls E-Stream EVO FS 2 27.5+ - 2018

Bulls E-Stream EVO FS 2 27.5+
  • Size: 46 cm
  • Size: 51 cm
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With the consistent merging of the latest drive technology and an exclusive setting design, the E-STREAM EVO series creates an eBIKE experience like no other. The most powerful semi-integrated battery is now on the market. An all new engine designed by Brose in collaboration with BULLS, the EVOlution of eBIKES is here with the new E-STREAM EVO series. This is a whole new exciting spin on the classic mountain bike, giving you that extra push, whether you’re pedaling on or off road your options are endless.

The latest 50-cell battery technology gives the removable battery an impressive capacity of 650 watt-hours. A high capacity battery in combination with the equally powerful and energy efficient BROSE geared motor, the E-STREAM EVO series works seamlessly even in the harshest conditions. Thanks to the 90Nm of torque you’ll never lack the power to get that necessary punch. With help from the belt driven motor you’re assured ultimate smoothness in every pedal. Synced with high resolution sensors, assistance is provided to you at every pedal stroke so you can ride with confidence.

The combination of strength and stamina come together to create a more balanced low center of gravity while still maintaining an optimal ground clearance. Countless hours of engineering and testing went in to developing the E-STREAM EVO series. Integration and simplicity were key factors for these models keeping in mind manageability, sport design, and sleek features as well. An exciting new innovative feature is the CSI Display which is conveniently located on your handlebars where it can provide accessible control and information. The new design features a more compact device to avoid bulkiness in case of a crash or fall.

Created with so much attention to detail, the new E-STREAM EVO 2 27.5 PLUS has innovative features such as a new boost standard frame, internal cable routing, and a tapered head tube. With all the features you desire from an eBike you would think this bike was custom made for you.

Built with a hardtail aluminum frame, this bike is ideal for climbing. With the added 27.5+ tires and SR suntour XCM fork you’ll be getting the full experience of an all-around eBIKE. With this added tire width you’re not only getting more traction but also making your ride more forgiving. Without a battery interfering, this bike accommodates two water cages for when the ride lasts long.

Equipped with a remote lockout, you can now have a full rigid-set-up while commuting on flat tarmac or when climbing steep hills. With a switch of a button, you can effortlessly open up the shock and take advantage of the 120mm of travel for rougher sections and descending adventures. Hydraulic disc brakes are utilized for fast breaking power and minimum brake fade from high speeds or extreme weather conditions. Thru axles on the front and rear give this eBIKE more rigidity, you’re assured a smoother ride boosting your confidence levels through the roof. Put all these awesome features together and you’re guaranteed not only a more economical ride, but an opportunity to tackle new terrains.


7005 Aluminium
Frame Size
SR Suntour XCR-32 RLR Air 27.5, 120mm, remote lockout, 15mm thru-axle
SR Suntour Epicon-LO D, air shox, with lockout
Drive Train
Brose 250W
Rear Derailleur
Shimano Deore XT RD-786-D-GS, 10-speed, shadow plus
Front Derailleur
Shimano Deore SLX FD-M618D
Shimano Deore SLX SL-M610
SR Suntour 38/24T
Shimano CS-HG50-10, 10-spee, 11-36T
Tektro HD-M285 hydraulic disc brakes, 180/180mm
Selle Royal im BULLS
BULLS Eccentric 35
Wheel Size
Schwalbe Smart Sam 65-584
50 lbs (approx.)
Eco, Tour, Sport
Charging Time
approx. 3.4hrs to 80%, approx. 4.5hrs to 100%
Battery Range
137 miles (single charge at the optimal condition)
Max. Speed



technology-imageQuiet 250W motor with 90Nm of torque is claimed the most advanced ebike system in the world.technology-imageThe battery can be removed and charged externally or installed in the bike.technology-imageOne of the most important features of Brose system which allows double drive. Owing to the additional front chainwheel, a 20-speed gears permits a more sporty eBiking experience.technology-imageThe 10-speed drivetrain with 10-gear cassette has proved to improve efficiency and ultimately power.technology-imagePerfectly integrated into the frame and easy to remove for external charging, it is currently the highest performing rechargeable battery in the market with 650w/37V/17Ah.technology-imageThis is semi-integrated headset with an inner diameter of 1 1/8" at the top and 1.5" at the bottom. This ensures best riding stability and excellent control head stiffness. The biggest shaft results in stiffer fork and frame as riding forces are spread more evenly thanks to a thicker head tube.technology-imageShimano Shadow Plus clutch mechanism prevents the lower arm of the derailleur from pivoting forward as the chain is kept under considerably more tension. The benefits are many: less chain slap, fewer dropped chains, more stable and accurate shifting over rough terrain and ultimately a much better and quieter ride.technology-imageThe main advantages of the thru-axle system are stiffness and strength, which add together to a safer bike. It has a clear advantage on disc brakes over the traditional quick release as it allows for easier and more precise wheel mount/dismount operation.technology-imageAt 110mm/148mm, the hubs of the boost standard are wider than any conventional ones. Connected to the flatted spoke screen, they increase stiffness and stability of the wheel for even better handling.technology-imageThe travel of front suspension is 120mmtechnology-imageFull suspension bike with a rear shock of 120mm travel.technology-imageHigher frames require longer chainstays. The result is a much-improved climbing capacity, which is relevant in large frames. After all, the center of gravity clearly shifts backwards with a taller rider, specifically during the climb. Taller riders also need more space as they usually have longer feet and for the longer cranks to avoid touching the chainstays with their heels.




REVIEW by Electric Bike Review on E-STREAM EVO FS 2 27.5 PLUS EBR - E-STREAM EVO FS 2 27.5 Plus 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 the bike and won't get bent or tip the bike over as easily if snagged. Uses the smallest plus sized tire standard 2.6" for precision and nimble handling but you still get improved traction and comfort, solid 180 mm hydraulic disc brakes. Compact transflective display stays out of the way and has a Micro-USB charging port built in, 20-speed drivetrain offers a wider range of cadence options

Part Numbers

Option MPN Store SKU
46 cm 776-12546 2617
51 cm 776-12551 2618