2015 Honda CRF150R, High Tech = High Performance: Thanks to the Unicam¿¿ cylinder head, this four-stroke engine is more powerful yet more compact, improving handling, power and efficiency.InnovationsUnicam¿¿ Engine: The CRF150R uses a Unicam engine based on our championship-winning CRF450R and CRF250R. Designed to give you excellent rideability and more power and torque across the rev band, the engine runs consistently at different tracks and varying elevations and temperatures¿¿¿it¿¿¿s an all-around winner.Accelerator Pump: The CRF150R uses a carburetor featuring a ¿¿¿direct push¿¿¿ accelerator pump. Based on the design we used on our carbureted versions of the CRF450R and CRF250R, it gives you better, more immediate throttle response.Track-Designed Chassis: A lightweight, high-tensile steel frame with large-diameter frame tubing and crossmember delivers excellent turning performance and straight-line tracking.Showa¿¿ Suspension: The adjustable 37mm leading-axle inverted Showa cartridge fork features specially tuned valving for small bumps and a friction-reducing design to improve compression and rebound control.Pro-Link¿¿ Rear Suspension: The CRF150R¿¿¿s Pro-Link rear-suspension system features a fully adjustable Showa¿¿ shock for superb bump absorption and wheel control.