2016 Yamaha WR450F, The all-new WR450F will prove to be a great enduro race bike as well as an aggressive trail bike for riders looking for modern technology and performance.Top FeaturesInnovative YZ450F-Based Engine Design: All-new for 2016—with a revolutionary rearward slanted, liquid-cooled, DOHC 4-stroke powerplant with four titanium valves based on the 2016 YZ450F™, a wide ratio five-speed transmission and WR-specific modifications—the new WR450F™ is an “out-of-the-box†enduro machine. (California Green Sticker compliant with a forestry service-approved spark arrestor.)