Silencioso YASUNI R Negro TUB420B

The “R” is the evolition of the “Z” with more volume and a wider cone, making it the ideal complement for 70cc Sport/Race cylinders. It works well with 50cc and 70cc cylinders but its true efficiency becomes apparent with the 70cc Sport cylinders. For superb performance we recommend modifying the variator application. With certificate of approvalComes equipped with a good quality aluminium cylinder70cc cylinder, only for race use