Airsal 70cc racing cylinder kit, complete with gasket set, piston, piston rings etc. The T6 Tech-Piston matches the T6-Racing exactly and also features a 2-piece outlet, but the difference lies in the high quality piston. Aluminium construction with hard chrome lining. The T6 Tech-Piston has great drive from low down and acceleration. A larger carburetor should be used. Supplied with cylinder head. Kit is designed for a standard crank with 10mm gudgeon pins.