Clutch spring set -POLINI- Rotax 125-150, Piaggio 125-200cc Leader, Piaggio 250cc Quasar/HPE, Piaggio 300cc Quasar/HPE, Piaggio 500cc Master (-04.2004), Honda 125-150cc 2-stroke, Honda 250cc (type CN), Kymco 125-150cc

With different spring strengths you can determine the speed range at which the frictional connection of the clutch should take place. If you install harder springs, the clutch engages at higher speeds. A cleanly tuned clutch gives you the important milliseconds at the start and decides on the 1/8 mile about good & bad!
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