Counter pressure spring Polini +25% / +10% for Piaggio 400, 500, Peugeot 400i

Description

This counter-pressure spring from Polini increases the pressure by 25% compared to the original spring and is therefore ideal for light tuning.
The counter-pressure spring has the task of pressing the belt pulley in the rear converter against the V-belt. On the other hand, it provides the counter-pressure for connecting” the variator.