Replace or upgrade your worn chain and sprockets with this market leading sprocket kit featuring quality JT Sprockets and D.I.D chain brought to you by THS Moto. Note the chain may need to be adjusted to length using a chain breaker tool. This Sprocket Kit contains a 15 tooth front JT sprocket and 55 tooth rear JT sprocket with a 420NZ124G 124-Link 420NZ3 Gold & Black Race DID Chain Fits: Honda CR85R Big Wheel 2003-2007