420 10T 17mm Chain Sprocket with Buckle Motorcycle Front Sprocket Gear fits f
420 10T 17mm Chain Sprocket with Buckle Motorcycle Front Sprocket Gear fits for 50cc 70cc 90cc 110cc 125cc 140cc 160cc Engine Pit Dirt Mini Bikes Go Kart Trail Quad ATVs 4 Wheeler Moped(1 Set). Installation Instruction are NOT Included.