... and stable performance This scooter clutch is very popular in China. It may fit most of Chinese 50cc scooters. This engine is ... 50 (139QMB).It usally marked XX50T-X in the Chinese scooter. We supply many to Chinese factories, such as Lifan, JIaling ... 2, Suzuki Katana 50 2t, SYM DD 50. Many Chinese 50cc scooter like QINGQI,QJMOTOR, LIFAN,ZONGSHEN, XINGYUE, WANGYE,JONGWAY, etc. GY6 ...