CeramicSpeed BB ALPHA bottom bracket, T47/86 Shimano Gravel
Center composition designed for long-term durability. BB ALPHA combines hardened stainless steel raceways with grade 3 silicon nitride balls, achieving up to five times better protection against moisture. Specialized seals and precision guards ensure ultra-low friction without compromise. Main features:
- Hardened stainless steel bearing races with ceramic balls
- 500% better protection against moisture
- Simplified design with tubular manifold and lighter bushings
- 10% lighter than previous generations
- Quick and easy installation
- Compatible with Shimano cranks with 24 mm axle
- Designed for T47 threaded frames with a width of 85–86 mm
- Lifetime warranty
| Suitability | MTB |
| Mount type | T47 |
| Axis type for crankset | HollowTech II (HTII) (⌀ - 24 mm) |
| Frame width | 85.5 mm, 86 mm |
| product ID | 371274 |
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