Blue Line Right Crankcase Cover Kit - 50cc 139QMB Series A customize "value": "13mm" }

"value": "13mm" }

See the compatibility table below to ensure this product works with your ride

Tubeless Construction: Designed for modern alloy rims but can be used with an inner tube if your vintage split-rim requires it

Pro Tip: If your engine code includes "QM" or "FM"

motorcycle

Blue Line Right Crankcase Cover Kit - 50cc 139QMB Series A customize "value": "13mm" }Product Overview Restore your scooter's engine integrity with the Blue Line GY6 50cc 139QMB Right Crankcase Cover Kit. Designed specifically for Series A 50cc 139QMB 4 stroke engines, this complete OEM style assembly offers a reliable, direct fit solution for cracked or damaged covers. Blue Line components are engineered to provide factory quality at a fraction of the cost. This comprehensive kit includes everything needed for a successful