5100-032YZ 125/250 88-97 / TT 600 88- YAMAHA YZ 125 88-97 YZ 250 88-97 YZ 360 1989 YZ 400F 1997 WR 500 92-95 TT 600 88-95 MEASUREMENTS Outer diameter: 220 mm Inner diameter: 115 mm Thickness: 4 mm Number of bolt holes: 6 Hole diameter: 6,5 mm Pitch: 133 mm Countersink: 90 dg CC Bolt article number: 1083-010 OEM Ref. 4MX-2582W-00-00