Part no 56-R305.WO (oro2u.com)
Wossner 95mm ring set Application Yamaha YFZ450 (12:1 Std.Comp) 04-05
YFZ450 )13.5:1 High Comp) 04-05

YFZ450/R (13.5:1 High Comp) 06-11
YFM600 GRIZZLY 98-01
GASGAS
450HP 03-05
Polaris

Outlaw 525 07-09
(Wossner part no 950XSY)