Furthermore the cylinder features a quality bore, good and strong piston rings and a special coating to the piston skirt for the running in phase, what males them superior to the original.
Fits all scooters with the new SYM 4.T engine (Bore/Stroke:37mm x 46mm).
Delivery is complete with piston, gudgeon pin, clips, piston rings, seals.
Perfect match with the original cylinder head.
Full power can be obtained after a short running in phase.
-Suitable for standard head