63.6mm Cylinder Piston Gasket Kit 150cc For Aprilia RS4, RX, SX, Derbi GPR, Senda, Malaguti RST, XSM, XTM, F.B. Mondial SMX (M545M). Fit for 4 stroke 125 Aprilia RS4, Tuono RS RX, SX, Derbi GPR, Senda, Malaguti RST, XSM, XTM, F.B. Mondial SMX engine type M545M (4-valve engine) Piaggio.
