As a subsidiary of Minarelli, Top Performances is proud to offer this top-quality 70cc Trophy cast iron cylinder. The kit is supplied with all the relevant components and gaskets, and is ready to install. The Trophy series offers a well-engineered and durable sports cylinder. The timing is not related to revs, but rather to the positive torque band. This means the Trophy cylinders offer outstanding acceleration at lower revs. The very good and durable piston is from ASSO, who also produce the pistons for Stage6 cylinders. This 70cc cylinder can add upto 9 bhp when used with a sports exhaust and relevant carburetor. 17.5mm carb is recommended.