The CeramicSpeed BB Alpha T47/86 bottom bracket for Shimano Road is designed to offer exceptional durability and smoothness, far exceeding market standards. Fitted with hardened stainless steel cups and grade 3 silicon nitride ceramic bearings, it guarantees maximum performance and ultra-low friction.

Thanks to custom-made seals and high-precision dust covers, moisture protection is up to 500% better, ideal for intensive use on the road, in triathlons or on the track.

Its optimised design reduces the overall weight by 10% compared to previous generations and makes installation easier. Compatible with T47 threaded headsets from 85 to 86 mm and Shimano cranksets with a 24 mm axle, this headset also comes with a CeramicSpeed lifetime warranty, a guarantee of absolute reliability.

Technical specifications:

- Use: road cycling, triathlon, track
- Key benefits: Maximum efficiency, ultra-low friction, up to 500% greater protection against moisture than a traditional bottom bracket
- Frame compatibility: T47 threaded - width 85 to 86 mm
- Crankset compatibility: Shimano Road 24 mm axle (and compatible models)
- Dimensions: T47 / 86 mm - internal bearings
- Weight: 96 g (net)
- Colour: Black
- Installation advice: Grease recommended on threads; adhere to manufacturer’s torque specifications
- Part number: 115436
- Brand: CeramicSpeed

Technologies:

- Grade 3 silicon nitride ceramic bearings for optimal performance
- Ultra-strong hardened stainless steel cups
- Reinforced sealing with precision seals and dust caps