Aprilia SR50 (Minarelli Engine)

Polini 4 Race Crank Minarelli

First polini 4 race cranks to hit usa. Yep. For minarelli/zuma horizontal or vertical. Polini is well respected for their quality and design in the scooter industry. This is a great option for guys that can't don't need the evolution crank. This is offered in 10mm only