Rocky Mountain ATV/MC Keefer Tested

Show #185 – 2020 Yamaha YZ250/450F GYTR Built Machines

GYTR is Yamaha’s in house performance accessory group and we get to test two of their engine kits. We will go over what is involved in the YZ450F and YZ250F builds, if they are worth the money, how they perform on the track and everything in between.

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