M250 is a profesional competition bike of BOSUER M series dirt bike. The equipped with NC250, water cooled, with internal balance shaft. Engine power is 23kw at 8500rpm, 4 valves.

  • M250 frame is made of alluminume. Forged alloy parts with strengthened formed alloy pipe connect together make the structure of the frame. With T4 & T6 treatment, the frame is not only less weight but also solid enough for competition.
  • Other parts, such as rim, hub are all made of alluminume to reduce weight of the whole bike.
  • Brake system are designed by BOSUER exclusively, new shape discs, double piston, MOJO brand as upgrade parts BOSUER.
  • 21″ front Rim and 18″ rear rim are 7 series alloy, hollowed CNC alloy hub.


Engine: ZS NC250 4-valve engine, 4-stroke, internal balance shaft, 6-speed, electric and kick start
Frame: steel full size dirt bike frame with linkage, alloy swing arm
Wheel: front 21″, rear 18″
Suspension: adjustable
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 Type:NC250CC , 4-valve, 4-stroke, water cooled, E & kick start
Bore X Stroke:77*53.6mm
Compression Rate:11.6:1
Max Power:19kW/9000rpm
Max Torque:23N.m/7000rpm
Valve System:6-speed
gear Ratio520-13/520-52
CHASSISSwing ArmAlloy, fat type, Ф28.5
Triple ClampForged alloy, 6061
SuspensionEmbracing high strengthened formed alloy
SwingarmFormed alloy
SuspensionFront fork :54/60-930mm, damping adjustments
Rear shock: 480mm , out air box, damping adjustments
Brake SystemDisc 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
Fuel Capacity6.5L
Seat Height940mm
Wheel Base1450mm
Net Weight116±1KG
Package Size1860*580*1080mm
Package Weight136±2KG