cylinder kit 50cc for GY6, Kymco 4-stroke, 139QMB/QMA

50cc Cylinder kit for all 50cc 4 stroke Chinese scooters which use the GY6 139QMB/QMA engines.
An ideal low cost replacement kit for those worn or damaged top ends.

Kit is supplied with required top end gaskets, barrel, piston, rings, pin and clips.

Please note: For Sym scooters this kit is only suitable for the GY6 139QMB engine version and not the XS1P139QMB, AV05W or AW05W engine or the Sym Symply 2 models