Replace or upgrade your worn chain and sprockets with this market leading sprocket kit featuring quality Tech 7 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 12 tooth front Tech 7 sprocket and 50 tooth rear Tech 7 sprocket with a 520V110 110-Link 520VO O-Ring solid bush clip link DID Chain Fits: Honda CRF230F 2003-2016 CRF230L 2010-2012