BlackBearing D4 1"1/2 40x52x12 mm 45x45° headset bearing

The BlackBearing D4 headset is designed for frames equipped with a 1"1/2 pivot fork. Its 2RS double-lip system ensures optimal sealing against moisture and dust for increased durability, while offering low friction.It is necessary to measure the dimensions of the bearing you want to replace with a caliper to ensure that the BlackBearing D4 bearing is compatible with your bike, while also taking the angle into account.

- Steel bearing
- 2RS seals: double lip, long-lasting performance with less friction
- High-quality "abec 5" balls
- International reference: T808
- Bearing height: 12 mm
- Internal bearing diameter: 40 mm
- External bearing diameter: 52 mm
- Angle: 45° internal, 45° external
- For 1"1/2 fork pivot