The entry standard for Enduro bearings. Enduros ABEC 3 bearings offer improved quality and performance over ABEC 1 bearings fitted by many OE manufacturers. Only the finest cycling components come standard with Enduros ABEC 3 bearings. With hardened chromium steel races balls and tough riveted steel retainers these bearings are durable and the perfect low cost performance upgrade.Bearing Code: MR 17287Dimensions: 17mm x 28mm x 7mmABEC: 3Grade: 10Seals: LLBGrease: Kyodo Yushi PS-2Application: Hubs Bottom BracketsWeight: 13.59g