Spring thrust POLINI white Ø3,6mm + 7% for Mbk, Yamaha, Keeway, Cpi ...

A white thrust spring at Polini. It has a 7% resistance (Ø3,6mm) harder than the original, with no risk to him it is too hard, is perfect for a lightly equipped scooter-type exhaust and carburetor adjustments + controller. For all minarelli scooter.