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wiseco bottom end/crank?

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I also need to replace my bottom end (crank and main bearings). My bike is th 07 wr 250, is the Yz any different? are they stronger for the increse in compression in the Yz and could I use them in the Wr ?

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I do not know when they made motor changes to the WRs, but I believe the crank is no different than the YZ. The higher performance YZF comes from the cams.

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The crank is different from a WR to a YZ. Different stator is the reason.

Sorry... Thank for the correct info. William

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