New high-performance option set of low ratio pulleys. The set includes 32T front and rear differential pulleys and Labyrinth Dust Covers (TM), 32T pulley for front one-way, and 18T central layshaft pulleys.
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These new pulleys result in a new lower internal transmission ratio (1.77 versus 2.125 of the original transmission), giving better acceleration and much smoother performance of the drivetrain.
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This high-performance option set works only with a solid central layshaft.
