139QMB Engine Parts - Short Case 51 Splines. 50cc Final drive shaft gear for GY6 139QMB Scooters
BT13867, 4250362412751
Number of Splines: 19
Inner Diameter (splines peak to peak): 18mm
Thickness: 15.7mm
BT13867, 4250362412751
Number of Splines: 19
Inner Diameter (splines peak to peak): 18mm
Thickness: 15.7mm