CeramicSpeed T47/86 Bottom Bracket for Shimano – Precision Meets Threaded Stability
The CeramicSpeed T47/86 Bottom Bracket combines the oversized stiffness of PF30 and EVO386 with the precision and reliability of a threaded interface. Designed for modern performance road and gravel bikes, this bottom bracket enables the installation of Shimano and other 24mm spindle cranks into T47 shell frames. It is fully compatible with 86mm wide frames as well as Trek T47 85.5mm standards.
Each bottom bracket includes CeramicSpeed Bearings pre-installed in threaded cups, connected through the shell for superior alignment and durability. Available in Standard and Coated versions, both feature ultra-smooth CeramicSpeed Balls and hardened-steel races. The Coated Bearings add a 3-micron metallic layer over the races for even greater smoothness, hardness, and corrosion resistance — reducing drag and extending lifespan.
Key Features
Innovative T47 Design: Merges oversized stiffness with the security of a threaded system.
Wide Compatibility: Fits 86mm and Trek 85.5mm T47 frames; supports all 24mm spindle cranks (Shimano, FSA, etc.).
Ultra-Low Friction Performance: Standard Bearings operate at just 0.3–0.4 watts of drag — 75% lower than conventional bottom brackets.
Longer Bearing Life: Standard Bearings last 3x longer than stock; Coated versions extend life by 60% and further reduce drag by 50%.
Customizable Grease Options: Delivered with All Round Grease for balance; optional Race Day (low drag) or Long Life (durable) greases available.
Lifetime Warranty on Coated Bearings: Protection against corrosion, ensuring performance even in harsh conditions.
Technical Specifications
ParameterDetailsTypeThreaded (T47/86 Standard)Bearing TypeCeramic (Standard or Coated)Shell Width86 mm (Trek: 85.5 mm)Spindle Diameter24 mmThread TypeT47Tool RequiredBBT-47MaterialHardened Steel Races with CeramicSpeed Balls
In The Box
2 × Threaded cups with CeramicSpeed Bearings installed
2 × Dust covers
1 × Spacer tube
All Round Grease
Sticker Sheet
Installation & Maintenance
Use a BBT-47 tool for precise installation. For optimal performance, CeramicSpeed recommends professional fitting and routine maintenance following official guidelines to ensure the lowest friction and maximum longevity.
