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 13 tooth front JT sprocket and 50 tooth rear JT sprocket with a 520DZ120G 120-Link 520DZ2 solid bush Gold & Black clip link DID Chain Fits: Gas-Gas MC125 2023 MC250F 2023 MC450F 2023 GasGas MC125 2021 MC250F 2021 MC450F 2021 Husaberg TE125 2012-2013 TE250 2011-2013 TE300 2011-2013 Husqvarna TE125 2014-2016 TE300 2014-2018 TE300i 2019-2021 TX125 2018-2019 KTM SX 125 2023