2019 Yamaha WR450F, 2019 Yamaha YZ450F Offroad Motorcycle for sale at Riva Motorsports & Marine Florida Keys YOU AND YOUR BIKE - CONNECTED AS ONE. All-New from the ground up, the YZ450F incorporates electric start, exclusive smartphone app power tuner, new engine, new frame, new slim styling and revised settings to the already industry-best suspension. Features may include: All-New Machine for ...