Brand New Final Gear. Inside: 19T, Outside: 40T.

For GY6 125cc, 150cc scooter motors. 157QMJ 

Inside of gear measure 18mm 

Outside of gear measure 75.2mm 

U.S. Seller, will ship from our Kennesaw, Georgia warehouse. We ship every day and most orders are shipped within 1 business day (excluding holidays). 

M7 Section 2