The BlackBearing D13 headset is a model designed for frames fitted with a 1½" pivot fork. Its 2RS double-lip system ensures optimal protection against moisture and dust for an extended service life, whilst offering low friction.

You will need to use a calliper to measure the dimensions of the bearing you wish to replace to ensure the BlackBearing D13 is compatible with your bike, whilst also taking the angle into account.

- Steel bearing
- 2RS seals: double-lip, long-lasting performance with reduced friction
- High-quality "ABEC 5" balls
- International reference: ACB518H8
- Bearing height: 8 mm
- Bearing inner diameter: 40 mm
- Bearing outer diameter: 51.8 mm
- Angle: 45° internal, 45° external
- For 1½" fork steerer