bigger bore cylinder kits for gy6 engine are supplied by GROWSUN, good ... valve oil seal, oil seal, spark plug, spoke, etcK. Engine: cylinder, piston kit, piston ring, clutch kit, clutch disk&plate, clutch ... 1983, CG125, DT125, XLR250, XLR125, TITAN,XLX350, XLX250, BIZ,TITAN125, CB125, XR600, XR250, NX150, C90.MBK and so on.Here are ... us for more details! gy6 performance parts of 100cc cylinder kits