GY6-50 cylinder head kit features: 1) Good heat radiation 2) High precision, low abrasion, low noise ... GY6-50 and other suitable models. cylinder kit including cylinder head, valve In. & Ex., springs, etc.Cylinder housing is made ... CUB100, DIO50, EX5, GLMAX, KHARISMA, KRISS, MAX100, NEOTECH, NSR150, SONIC, TIGER, TITAN125, TITAN2002, TITAN2003, TITAN99, TODAY125, WY125, VARIO, XLR125, XLS125, XL185 ...