Enduro 21531 LLB Sealed Cartridge Bearing Bicycle BearingsMR 21531 LLB ABEC 3, Radial Bearing (C3 clearance) 21. 5mm x 31mm x 7mm This ABEC 3 bearing features deep groove design races, with grade 10 balls, light contact, dual lip, labyrinth (LLB) seals and 90% fill with high pressure water proof grease to withstand daily abuse of use and the elements. A bit of an oddball size, this bearing generally used as a front hub bearing, specifically for older WTB 20mm hubs. It has also been used for Isis bottom

not your chain

Stem Compatibility: Compatible with the C260 stem

40 lumens (rear)

EXTRA WARMTH: The first two fingertips are double-wrapped for added protection from the cold

these headsets are built with zero compromises in material quality

V-cut vented shell enhances airflow and reduces foot fatigue

ensuring you remain the of steering during the wettest race runs

and helmet-compatible fit for clear vision on technical trails

these allow you to have a normal hood position in addition to an easy reach to the brake levers from the drops

Low-Friction Formula: The 20wt

SRAM Rival 1 Disc Bicycle Brake Levers

Low - 7:00h at 150 Lumens