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T47/86 Inboard Bottom Bracket

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Why We Like

The CeramicSpeed T47/86 Inboard Bottom Bracket matches the bearing placement on the crank spindle with the frame interface required for almost any bike model. The CeramicSpeed bearings reduce drag by 75% compared to stock bottom brackets, which in turn helps us ride faster and stronger. The hardened-steel races rolling ceramic balls are smooth and built to last.


  • Matches crank spindles with the required frame interface
  • Standard bearings feature CeramicSpeed Balls and hardened-steel races
  • Integrated dust cover protects the bearing face
  • Requires a BBT-47 bottom Bracket tool for installation
  • Item #CMD1SSN
Shell Type
Crankset Compatibility
2 cups with CeramicSpeed Bearings installed, 2 dustcovers, Spacer-tube, 4 x 1mm spacers, 2 x 3mm spacers, CeramicSpeed All Round Grease, Sticker sheet
road cycling
Manufacturer Warranty
[standard] 4 years [coated] lifetime