Bulls MONSTER E S (500w) Electric Bicycle

  • Bulls MONSTER E S (500w) Electric Bicycle-The Electric Spokes Company
Bulls MONSTER E S (500w) Electric Bicycle-The Electric Spokes Company Bulls MONSTER E S (500w) Electric Bicycle-The Electric Spokes Company


Bulls MONSTER E S (500w) Electric Bicycle


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FATBIKE harmoniously meets eBIKE

The BULLS Monster E S has united all of the innovations that proven successful in the past. An improved Bosch mid-engine offers pedal-assist up t0 20mph. An aluminum frame with a tapered headtube and tailored chainstays makes this fat-eBike ready to conquer anything you can get your tires on. Front suspension duties are taken care of by the RockShox Bluto with plenty of clearance so mud doesn’t get stuck between the bridge of the fork and tire. A 100mm fork travel is offered to help get over those bigger obstacles and maintain traction. Thru-axles offer the rider an extra rigid feel, improving the handling. No matter the weather conditions, you can always depend on the 4” Schwalbe Jumbo Jim Snake Skin Tires to drag you through difficult terrain. Whether you are riding on snow, sand or rocks, you can rely on always having a grip on the situation.

The bicycle is equipped with Shimano Deore XT, an 11-speed drive train that has plenty of  range for any type of riding.

The Monster E S is assisted by Bosch’s CX Performance Line 350W motor. Power is supplied by a 36V, 400 watt-hour battery with a full recharge time of only 3.5 hours. The battery performance ranges more than 105 miles, depending on riding conditions and terrain. The motor can alternate between 4 different modes to accommodate your riding style.

Come check out the new wave of  BULLS Monster E S at a dealer near you!


7005 Aluminium
Frame Size
Rock Shox Bluto RL Solo Air, 100mm, 15mm Maxle
Drive Train
Bosch Performance Line CX 350W
Rear Derailleur
Shimano Deore XT RD-M8000-GS, 11-speed, shadow plus
Shimano Deore XT SL-M8000, 11-speed
FSA WA642 15T
Shimano Deore XT CS-M8000-11, 11-40T
Shimano Deore BR-M615 Ice Tech hydraulic disc, 180/180mm
Seat Post
Selle Royal Seta M1/STYX
BULLS 80 mm
Wheel Size
Schwalbe Jumbo Jim Snakeskin 26×4.0 TL-Easy
51.3 lbs (approx.)
Eco, Tour, Sport, Turbo
Charging Time
approx. 2.2hrs to 80%, approx. 3.5 hrs to 100%
Battery Range
109 miles (single charge at the optimal condition)
Max. Speed

Specifications subject to change without notice.


technology-image Bosch Performance CX line thrills city cruisers 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 results 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 Shimanou2019s 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 Sandwich construction and additional cooling fins reduce the heat development and increases the brake performance and results in lower wear.
technology-image Internally routed shifting and braking cables ensure a clean and elegant look while ensuring a better protection to all important cables.