For 2019, Yamaha came out with a complete remake of the YZ450FX off-road four-stoke. It has a new frame with more rigidity in every plane, a new, lighter motor with a much more compact electric starter and a larger fuel tank. This bike received all the changes that were directed at the YZ450F motocross bike in 2018, plus the updates that the MX bike got for 2019. The FX is also compatible with the Yamaha Power Tuner Smart Phone app that lets you tune the bike without touching it.

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