Honda CRF250R Engine Parts The Honda CRF250R's 249cc four-stroke engine is tiny yet fierce, with a high-revving design that provides excellent power and performance. The engine has twin overhead camshafts (OHC), four valves per cylinder, and aggressive porting for enhanced power output. The end res... show more
Honda CRF250R Engine Parts
The Honda CRF250R's 249cc four-stroke engine is tiny yet fierce, with a high-revving design that provides excellent power and performance. The engine has twin overhead camshafts (OHC), four valves per cylinder, and aggressive porting for enhanced power output. The end result is an extremely wide powerband that provides both powerful low and mid-range output as well as strong top performance.
A 34mm Keihin carburettor with progressive throttle linkages supplies great throttle response and rideability to the engine. For strength, the crankshaft is manufactured from high-strength steel, while the connecting rods are composed of lightweight aluminium. The piston is a high-compression, low-friction design with a unique anti-fouling treatment to extend the life of your engine.
The CRF250R's gearbox has tight-ratio gears that are close together for quick, accurate shifting. The clutch is a multi-plate setup with coil springs that provides light lever pull and good feel..
The CRF250R's frame is built to give the best possible balance and handling. The frame is composed of lightweight aluminium with a taper main beam for extra strength and stiffness. The subframe, on the other hand, is constructed of high-strength steel for long-lasting durability.
The front suspension features 43mm Showa inverted forks with 16-position rebound damping and 12-position compression damping adjustability. The rear suspension features a Showa Pro-Link shock with 19-position rebound damping and 20-position compression damping adjustability.
The CRF250R's wheels are constructed of lightweight aluminium and have Dunlop MX3S tires on them. The front wheel is 21 inches in diameter, while the rear wheel is 19 inches in diameter.
Twin 280mm discs are mounted up front, while a single 240mm disc is located at the rear. The front brake calipers are four-piston radial-mount units, while the rear brake caliper is a two-piston unit.
www.motocrossparts carry a wide range of CRF250R Engine Parts to help maintain and enhance your 250 four stroke engine.show less