50factory 13mm piston pin clips for GY6 and 139FMB 4T engine
GY6 engine cylinder piston clips Piston pin circlips compatible scooters equipped with GY6 engine 50 cm3 4 time. Sold par 2 game GY6 engine 139QMB 50 cm3 (49,9cc) 4 engine mounted on AJS, Adly, scooters Aeon, Baotian, Beeline, Branson, Daelim, Garelli, Goccia, Goes, Hp Power, Keeway, Kreidler, Kymco, Lifan,