Exhaust System / Muffler for GY6 50cc Scooter - RED 612092 If you are needing a

If you are needing a longer case 3-bolt starter

4mm piston

Rocker hole across distance: 70mm

0 Inch (99mm)

Version 17

Exhaust System / Muffler for GY6 50cc Scooter - RED 612092 If you are needing aPerformance GY6 50cc Scooter Exhaust System RED This exhaust is known to fit many QMB139 50cc scooters. In some cases this exhaust system may not just bolt on. Some modifications to inlet pipe bracket may be required. Please verify the measurements before purchasing this exhaust. May fit other makes and models. Exhaust details: Muffler length: 35. 5cm (14. 0 in) including exhaust tip. Muffler diameter: 90mm (3. 5 in) Muffler has replaceable screw in