2015 Honda CRF450R, New 2015 Honda CRF 450 R Competition/Motocross Bike...featuring an all-new Engine Mode Select button that 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, its 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. Plus, theres stronger transmission gears, a new piston, more flywheel mass, a new rear shock thats easier to adjust and a new 260mm front brake lets you haul down all that speed with more stopping power.