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.
2015 Yamaha YZ450F, A WINNER RIGHT OUT OF THE CRATE.Completely re-engineered just last year with new EFI engine, an entirely new frame, minimized body work and new suspension components providing for excellent mass centralization and class leading 450 power with 250-style handling. The critics agree: the YZ450F is the one to beat.