The entry standard for Enduro bearings. Enduro’s 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 Enduro’s 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.Key Features:Bearing Code: MR 24371,Dimensions: 24 x 37.1 x 7mm,ABEC: 3,Grade: 10,Seals: LLB,Grease: Mobile HP 222,Application: Hubs, Bottom Brackets,Weight: 31.10g.