Gear, Final for 50cc 4-Stroke 139QMB Scooters

Final Drive Gear for 50cc 4-Stroke 139QMB Scooters

SPECIFICATIONS:

• Number of Splines: 19
• Inner Diameter (splines peak to peak): 18mm
• Thickness: 15.7mm

**NOTE: 51 tooth is found in short case engines and 52 tooth is found in long case engines.