2011 Yamaha WR450F, Super Clean! - THE TOUGHER THE TRAIL THE BETTER WR450F features a powerful and reliable highly evolved high-revving five-titanium-valve engine. YZ-bred advanced aluminum frame, push-button start, and digital enduro race computer with speedometer, clock, and tripmeter. WR450F is also green sticker approved from California.
2015 Yamaha WR450F, THE ULTIMATE COMBINATION: YZ250F STYLE CHASSIS WITH 450FI POWER.Packed with legendary Yamaha features: advanced, light aluminum YZ250F-bred frame for scalpel sharp steering; powerful, reliable high-revving five-titanium-valve engine with fuel injection delivering crisp linear throttle response; plus slim bodywork for ultra-lightweight handling combine with open-class power - for the best of both worlds.