CEMA ACB Headset Bearing
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The CEMA ACB headset bearing is the replacement to fit when your bike's headset has play, feels notchy or moves with friction. This size, 41 x 30.1 x 6.5 mm with an angle of 45°/45°, is for anyone who needs to replace the bearing with one of the same dimensions.
It is made from chrome steel with double seals, meaning two seals that help protect the bearing from dirt. The colour is silver-black. To choose, compare the outer diameter, inner diameter and height with those of your headset, then check the angle: 45°/45° indicates two cups with the same angle, so this needs checking on your frame. If you are unsure about the dimensions, measure before ordering.
| Type | Headset bearing |
|---|---|
| Material | Chrome steel |
| Outer diameter | 41 mm |
| Inner diameter | 30.1 mm |
| Height | 6.5 mm |
| Angle | 45°/45° |
| Sealing | Double |
| Colour | Silver-black |