Headset BBB Semi-Integrated 1.1/8"-1.5" 44mm-55mm

BBB ’s Semi-Integrated Tapered headset is designed to provide smooth, precise and durable rotation of the steering assembly. Thanks to its semi-integrated (Zero Stack) design, the bearings are housed inside the head tube via dedicated cups, ensuring a clean fit and excellent reliability.

Fitted with sealed CrMo steel bearings, this headset guarantees excellent resistance to wear, corrosion and the ingress of dust or moisture. Its tapered design makes it compatible with modern 1"1/8 – 1"1/2 forks, offering greater stiffness and precision when steering.

The open crown supplied facilitates installation and maintenance, whilst the sealed bearings ensure long-lasting performance even under intensive use.

Technical specifications:

- Brand: BBB
- Model: Semi-Integrated Tapered
- Type: Semi-integrated headset (Zero Stack)
- Upper standard (S.H.I.S.): ZS44/28.6
- Lower standard (S.H.I.S.): ZS55/40
- Inner diameter of upper steerer tube: 44 mm
- Inner diameter of lower steerer tube: 55 mm
- Fork steerer compatibility: 1"1/8 - 1"1/2 tapered
- Upper bearing diameter: 41 mm
- Lower bearing diameter: 51.8 mm
- Bearing material: CrMo steel
- Bearings: Sealed bearings
- Fork crown: Included
- Crown diameter: 50 mm
- Crown height: 15 mm
- Weight: 111 g