M11 is a new bike created in 2021, the bike is a full size bike, it is a competition bike. The bike fixed with MOJO 250cc engine, 4valves and air cooled. The engine is exlusively design and made by BOSUER company, it is the best air cooled 4-valve engine to the market so far.

  • Engine is designed with 4 valves, it burn the fuel more efficient compare with 2 valves, and better fuel consumption.
  • The engine is also futured on side cover with MOJO logo, it has balance shaft to reduce vabrition to the whole bike.
  • Chassis is one of BOSUER full size steel frame, formed steel pipe and other structured parts connect together making the whole bike very solid not only for dural popurse but also for competition.


Engine: CB250 4-valve engine, 4-stroke, internal balance shaft,5 speed, electric start
Frame: steel full size dirt bike frame with linkage, alloy swing arm
Wheel: front 21″, rear 18″
Brake system: Mojo brake, 2 pistons of front brake, 1 pistion rear
Muffler: stainless steel with power bomb

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product features

Product parameters 

Product parameters 

ENGINEEngine TypeMOJO 250cc, 4-Valve, single cylinder, air cooled, E & Kick start
Bore X Stroke(mm)72*61.4mm
Expression Rate9.25:1
Max Power18.5KW/7500rpm
Max Torque20N.m/6500rpm
CHASSISFuel Capacity6.5L
Handle BarAlloy, fat type, Ф28.5
Triple ClampForged alloy 6061
FrameEmbracing high strengthened formed steel pipe
Swing ArmFormed steel, knife shape
SuspensionFront fork : 53/58.5-880mm, rebound and compression adjustment
Rear shock: 480mm , air box, rebound and compression adjustment
Disc BrakeDisc brake, disc size: front: 240mm/ rear: 240mm
WheelAlloy rim, rim size, front: 1.60-21/ rear: 2.15-18
TireTire size: front: 80/100-21 / rear:100/90-18
DIMENSIONSMax Loading90kg
Seat Height930mm
Wheel Base1430mm
Net Weight113±1KG
Package Size1860*580*1080mm
Gross Weight134±2KG