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  • Users: Ktmguy
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  1. Ktmguy

    Motorcycle crank bearing problem

    Hi there, I have a question regarding the main bearings in my motorcycle. It is a single cylinder supermoto bike. The problem is that the crank bearings are known to prematurely fail. The crank is a two piece press-fit and has been known to deflect under load at high rpm. The bearings are...

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