SIX50+ E FS 3


With world class leading innovations and one of the most powerful electric bike systems in the world BULLS has easily set itself apart from its competitors. Built around an aluminum frame with performance in mind, you can find all the latest eBike technology developed into this model.

Outfitted with a Bosch Performance Line CX, 250W, mid-drive motor you’ll be able to charge up any steep terrain. With a max torque output of 75Nm the bike’s potential will let you discover trails you’ve never seen before. In addition, the motor has been redesigned to integrate with the complete bike seamlessly. By tilting the motor 60 degrees upwards not only do we improve the aesthetics but also eliminate the need for a chain guide and clear room to allow for shorter chainstays.

The power will be supplied by the biggest battery Bosch has to offer which sits flush on the downtube. The 36V, 500 watt-hour, power pack offers an impressive range of 130 miles in optimal riding conditions. Weaving through those long trails is now made possible on a single charge.

Designed to tear up those trails you’ve always wanted to tackle, the massive 27.5 + tires allow you to have traction at all times. Matched with a reliable set of Shimano Deore XT components you can depend on smooth and low maintenance parts. With RockShox suspension on both the front and rear the SIX50+ E FS 3 is capable of giving you a true off-road adventure. Despite the low price, BULLS does not cut any corners and has spec’d this bike to your expectations.

Check out the all new SIX50+ E FS 3 at an eDealer near you!



7005 Aluminium
Frame Size
Rock Shox Yari RC 27.5+ 150mm, 15mm thru-axle
Rock Shox Deluxe RT
Drive Train
Bosch Performance Line CX 250W
Rear Derailleur
Shimano Deore XT RD-M8000-GS, 11-speed, shadow plus
Shimano SL-M8000, 11-speed
SR Suntour 15T
Magura MT-5/MT-4 180mm/180mm
Shimano Deore SLX CS-M7000-11 11-42T
Seat Post
Selle Royal im BULLS
BULLS Eccentric 35
Wheel Size
Schwalbe Rocket Ron Performance 70-584
48 lbs (approx.)
Eco, Tour, Sport, Turbo
Charging Time
approx. 4.5 hrs to 100%
Battery Range
134 miles (single charge at the optimal condition)
Max. Speed

Specifications subject to change without notice.

technology-image Bosch Performance CX line thrills trail enthuisats with a torque of up to 75Nm and powerful assistance up to 300%
technology-image The 11-speed drivetrain with 11-gear cassette has proved to improve efficiency and ultimately power
technology-image Higher 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.
technology-image This 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-image BULLS eBikes are protected by Skid Plate, a shield developed exclusively for Bosch-equipped off-road eBikes which guarantees an action-packed ride on even the most extreme slopes. Like the underbody protection for off-road vehicles, the Skid Plate protects BULLS eBikes from direct impact damage
technology-image Shimano 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-image The 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-image Internally routed shifting and braking cables ensure a clean and elegant look while ensuring a better protection to all important cables.
technology-image The travel of front suspension is 150mm
technology-image Full suspension bike with a rear shock of 150mm travel.
technology-image At 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-image The battery can be removed and charged externally or installed in the bike
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EBR - SIX50+ E FS 3

  • 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 and center for balance, available in three frame sizes for improved fit
  • 1 x 11 drivetrain is light and clean, narrow-wide tooth pattern on the chainring compliments the Shadow+ derailleur tightening clutch to reduce bounce and drops
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