Lambretta forged piston from Wössner with 30 mm compression height for connecting rods with 115 mm and 116 mm length. Thanks to the original piston crown, the piston can be used on RB22, TS1 225 cylinders and also on RT 225 cylinders with a crankshaft with corresponding connecting rod length and diaphragm inlet. The piston is for cylinders with 70 mm bore and has a nominal dimension of 69.96 mm.