Lets Ride off road!!! The revolutionary Yamaha YZ450F has been the most advanced machine in it's class. This is the one with the reversed engine design. Given that the 2018 YZ450F engine package is drastically changed from the 2017 mechanicals, one can expect big horsepower numbers. Plus, Yamaha piqued our interest by telling us that the 2018 YZ450F made more horsepower more than the 2017 YZ450F.   The Yamaha YZ450F comes out of the factory more race-ready than ever. New engine maps make for increased responsiveness, a fatter midrange powerband, and the same spirited performance at higher revs. Available at Brennys Motorcycle Clinic in Bettendorf, Ia. Call 563-359-7222. Go to brennys dot com for more bikes and ATVs.