Part no 56-R305.WI
Yamaha YFZ450 (12:1 Std.Comp) 04-05
YFZ450 )13:1 High Comp) 04-09
YFZ450 (11.4:1 High Comp) 06-08
YFZ450R (11.4:1 Comp) 06-12

YFR450R (12.4:1 High Comp) 09-12
GASGAS 450HP 03-05
Wiseco 95mm ring set
Cross reference numbers ONLY. Wiseco part no 3741XS

Yamaha WR450F (2003 - 2014) Yamaha WR450F (2006 - 2014) Yamaha YFZ450 (2012 - 2013) Yamaha YFZ450R (2009 - 2013) Yamaha YFZ450X (2011 - 2011) Yamaha YFZ450 (2006 - 2009) Yamaha YZ450F (2003 - 2009) Yamaha YZ450F (2006 - 2009)