VMC CP58 aluminium cylinder 135cc Ø 58mm, side spark plug, 51 stroke for Vespa 50

VMC CP-58 135cc thermal unit Ø 58mm stroke 51mm CAST HEAD SIDE SPARK PLUG Bore diameter 58mm Stroke 51mm Displacement 135cc Timing: Main ports 124° Exhaust 180° High silicon content two-piece aluminium alloy piston. CNC-machined die-cast aluminium head Steel piston rings Steel piston pins Steel piston pins Can be fitted with 51mm stroke crankshafts and 97mm connecting rods No need to file or remove the dust guard on the engine crankcase. When paired with the VMC Siluro exhaust, it becomes an engine with power always available while maintaining the reliability of the original engine with a classic look and sound. The perfect upgrade for your Vespa.