MTB Headset Replacement Bearing, 45 Degree Steel, 41 mm to 52 mm Sizes

Rated 4.90/5 by 167 shoppers

€13.99

• Steel replacement bearing for bicycle headsets with a 45 degree contact angle
• Five sizes: 41 x 30.2 x 6.5, 41.8 x 30.2 x 6.5, 47 x 34 x 7, 49 x 37 x 7 and 52 x 40 x 7 mm
• Sized as outer diameter x inner diameter x thickness — measure your old bearing to match
• Light at roughly 25 g
• Made by ZTTO for mountain bike steering repairs

A rough, notchy headset usually comes down to one small part, and this is it. ZTTO's replacement steering bearing brings back smooth handlebar movement without the cost of replacing the whole headset. Five sizes cover common standards — 41, 41.8, 47, 49 and 52 mm outer diameters — each in steel with a 45 degree contact angle. Sizes are listed as outer diameter x inner diameter x thickness, so measure your old bearing (or check your headset's specification) and pick the match. At around 25 g it is an easy part to keep as a spare, and one worth fitting at the next service rather than waiting for the steering to complain.