JT Steel Sprockets are the OEM quality choice, manufactured using only the finest grade of C49 high carbon steel for the rear sprockets, and SCM420 chromoly steel alloy for the front sprockets.
Fits:

Gas Gas EC 200 2001, Gas Gas EC 200 2002, Gas Gas EC 200 2004, Gas Gas EC 200 2T 2007, Gas Gas EC 200 2T 2008, Gas Gas EC 200 2T 2009, Gas Gas EC 200 2T 2010, Gas Gas EC 200 2T 2013, Gas Gas EC 200 2T 2014, Gas Gas EC 200 2T 2015, Gas Gas EC 200 Racing 2T 2014, Gas Gas EC 250 2T 2001, Gas Gas EC 250 2T 2002, Gas Gas EC 250 2T 2003, Gas Gas EC 250 2T 2004, Gas Gas EC 250 2T 2005, Gas Gas EC 250 2T 2006, Gas Gas EC 250 2T 2007, Gas Gas EC 250 2T 2008, Gas Gas EC 250 2T 2009, Gas Gas EC 250 2T 2010, Gas Gas EC 250 2T 2011, Gas Gas EC 250 Racing Elec Start 2T 2014, Gas Gas EC 250 Racing Elec Start 2T 2015, Gas Gas EC 250 Racing Elec Start 2T 2016, Gas Gas EC 250 Racing Elec Start 2T 2017, Gas Gas EC 250 Replica 2T 2012, Gas Gas EC 250 Replica 2T 2013, Gas Gas EC 300 2T 2001, Gas Gas EC 300 2T 2002, Gas Gas EC 300 2T 2003, Gas Gas EC 300 2T 2004, Gas Gas EC 300 2T 2005, Gas Gas EC 300 2T 2006, Gas Gas EC 300 2T 2007, Gas Gas EC 300 2T 2008, Gas Gas EC 300 2T 2009, Gas Gas EC 300 2T 2010, Gas Gas EC 300 2T 2011, Gas Gas EC 300 2T 2012, Gas Gas EC 300 2T 2013, Gas Gas EC 300 2T 2014, Gas Gas EC 300 2T 2015, Gas Gas EC 300 2T 2016, Gas Gas EC 300 2T 2017, GasGas EC200 2013, GasGas EC250 2002, GasGas EC250 2003, GasGas EC250 2004, GasGas EC250 2007, GasGas EC250 2009, GasGas EC250 2010, GasGas EC250 2011, GasGas EC300 2002, GasGas EC300 2004, GasGas EC300 2006, GasGas EC300 2008, GasGas EC300 2009, GasGas EC300 2012, GasGas EC300 2015, GasGas EC300 2017