Amazon.com: AlveyTech #35 Chain 40 Tooth 1-1/2" Bore Steel Sprocket - Replacement Parts for the Monster Moto, Mega Moto MM-K80R, TaoTao GK80 Gas Go-Kart, Mini Bike, Dirt Bikes, Pit Go-Karts, Pitch Type
Rear Sprocket 428 46 teeth for Benelli 180S - BenelliPro Moto Mart