Enduro 1.5" 36 x 36 Degree Stainless Steel Angular Contact Bearing 40mm ID x 51mm OD x 6.5mm ModelNumber=K4871 Small size easily fits in

Small size easily fits in a jersey pocket or saddle bag

Stealth® Phantom rubber offers high-friction grip and non-marking utility on and off the bike

Big Betty works perfectly on the rear wheel when combined with the much-loved Magic Mary

Rugged durability comes naturally to the XX SL Eagle T-Type direct mount chainring

Ramped center knobs are fast rolling and provide secure braking

Enduro 1.5" 36 x 36 Degree Stainless Steel Angular Contact Bearing 40mm ID x 51mm OD x 6.5mm ModelNumber=K4871 Small size easily fits inEnduro 1. 5" 36 x 36 Degree Stainless Steel Angular Contact Bearing 40mm ID x 51mm OD x 6. 5mm. ABI Headset Bearing for new builds or replacements. TECH SPECS Cartridge Bearing Angle 36x36 Bearing I. D. (mm) 40 Bearing Type Cartridge Bearing O. D. (mm) 51 Thickness 6. 5