47mm

The Trophy Series offers advanced and durable sports cylinders. The Steurzeiten are not designed for speed, but on the positive torque curve. This offer Trophy `s excellent acceleration values ​​associated with lower speeds. The very good and durable piston comes from association, which also produce the piston cylinder for Stage6.

This 70-cylinder, he can reach up to 9 HP in conjunction with a sports exhaust system and corresponding carburetor. 17.5 mm carburetor is recommended.