... -50 cylinder head kit This scooter cylinder head fit for GY6-50 and other suitable models. cylinder kit including cylinder head, valve In. & Ex., springs, etc.Cylinder housing ... , Y100, Y110, Y80, YB125, YL2G, MIO, etc.), SUZUKI(A100, AG100, AX100, B120, FR80, GS125, K125, RC100, TS125, TR125, VIVA115, SHOGUN, SMASH ...