idle shaft gear / kickstart pinion gear - 7 splines for GY6 50cc 139QMB/QMA BT12010 fitting for Baotian BT49QT-11 Retro1 Sitzer 50 2009, 3,7 PS, 2,7 kw

Kick-start sprocket with very strong teeth to deal with heavy loads, as they transfer the power from the kick-start to the crank. Many starting issues can be traced to the kick-start. 2 different versions with either 7 or 8 teeth are currently used. This version is the 7-tooth version. Please check product image and compare to original part.