2015 Honda CRF450R, There¿¿¿s big news for 2015: an all-new Engine Mode Select button lets you choose between three settings (Standard, Smooth, and Aggressive), just by pushing a handlebar-mounted button. Its an industry first for MX bikes, and its going to make tuning your bike for changing track conditions a snap. With our available HRC Fuel Injection Setting Tool, it¿¿¿s easily adjustable to specific track conditions and refines your settings in place of the smooth and aggressive settings on the engine mode selector. Next, the CRF450Rs revolutionary KYB Air Fork features new high-speed/low-speed compression and rebound damping, letting you dial in the CRF450Rs suspension in much quicker. The new exhaust port header design and compact dual exhaust further enhance mass centralization. And the new head design provides more top end power and over-rev.