Order Includes: 1x Collar. Compatible with Yamaha models: YFZ450 2004-2013. Part Number: 90387-160W0-00. Dimensions: Inner Diameter: 16mm / 0.63", Outer Diameter: 22mm / 0.86", Length: 81.3mm / 3.20". We strongly suggest comparing the posted picture to the unit(s) that needs to be replaced..
