2010 YZ250F

optimized engine delivers a new level of power in low-to-midrange, with a great torquey feel, exactly where riders want it. That is due to the new straight intake boot that enhances breathing, new carburetor that provides excellent throttle response and fuel atomization, and redesigned valve train components that reduce inertial mass and boost low end torque.
All new styling emphasizes the bike’s light weight and nimble handling character.



spec :
Engine Type = 250cc liquid-cooled DOHC 4-stroke; 5 titanium valves
Bore x Stroke = 77.0mm x 53.6mm
Compression Ratio = 13.5:1
Fuel Delivery =Keihin® FCR MX37
Ignition =CDI
Transmission =Constant-mesh 5-speed; multiplate wet clutch
Final Drive =Chain Drive
Chassis Suspension/Front = Speed-Sensitive System inverted fork; fully adjustable, 11.8-in travel
Suspension/Rear = Fully adjustable single shock; 12.0-in travel
Brakes/Front = Hydraulic single disc brake, 250mm
Brakes/Rear = Hydraulic single disc brake, 245mm
Tires/Front = 80/100-21
Tires/Rear = 110/90-19
DimensionsLength = 85 in
Width = 32.5 in
Height = 51.3 in
Seat Height = 38.9 in
Wheelbase = 57.7 in
Ground Clearance = 14.8 in
Wet Weight = 224.8 lb
Fuel Capacity = 1.7 gal