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Belt and Pulley well matched technology.

If the belt and the pulley are not well matched, friction, noise or tooth jumping phenomenon is easy, and in severe cases, the belt will break or the pulley will be severely worn and damaged.

How to choose a the right Front and Rear wheel?  Please special attention to the rear wheel and belt meahing teeth must above 9 teeth and not allow to lower 8 teeth to avoid tooth jumping phenomenon because the tooth peeling force must be consindered.  Motorcycles should have more than 20 teeth.