COMPETITION DIRTBIKE MR300S

MR300S is a profesional competition bike of BOSUER M series dirt bike. The equipped with 300cc, double camsahft, water cooled, with internal balance shaft. Engine power is 23kw at 8500rpm, 4 valves.

  • MR300S 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 NC300S 4-valve engine, double camshaft, 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

Product parameters

ENGINE Engine Type 300cc , 4-stroke,4-valve,water-cooling, double overhead camshaft, with balance shaft
Bore X Stroke(mm) 82.0×53.6mm
Expression Rate 11.8:1
Max Power 23kW/9000rpm
Max Torque 25N.m/7000rpm
Transmission 6-speed
Ignition DC-CDI
Carburetor PZ38
Chain/Sprocket 520-13/520-52CNC sprocket
CHASSIS Fuel Capacity 6.5L
Handle Bar Alloy, fat type, Ф28.5
Triple Clamp Forged alloy 6061
Frame Embracing high strengthened formed alloy
Swing Arm Formed alloy, knife shape
Suspension Front fork: 54/60-930mm, damping adjustment
Rear shock: 480mm , inner box, damping adjustment
Disc Brake Disc brake, disc size: front:240mm / rear:240mm 
Wheel Alloy rim, CNC hub, rim size: front: 1.60-21/rear: 2.15-18
Tire Tire size: front: 80/100-21 / rear: 100/90-18
DIMENSIONS Max Loading 90kg
Seat Height 940mm
Wheel Base 1450mm
Clearance 290mm
Dimession 2170*820*1270mm
Net Weight 116±1KG
Package Size 1860*580*1080mm
Gross Weight 137±2KG

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