NICHE MK1004635 Front/Rear Combo Kit Sprocket Chain Set
Compatible with (Replacement for) The Following Vehicles:
For Yamaha WR400F: 1999 For Yamaha WR426F: 2002 For Yamaha WR450F: 2004-2011 For Yamaha YZ250: 2003-2011 For Yamaha YZ400F: 1999 For Yamaha YZ426F: 2000-2002 For Yamaha YZ450F: 2003-2004