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Rotor BB30-24 Converter Bottom Bracket - Ceramic


Item # RTR000C

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  • Black/Black, One Size ($299.95)
  • Red/Red, One Size ($299.95)
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Item # RTR000C

Convert with confidence.

With the same innovative thinking that's continuously kept Rotor at the forefront of crankset and chainring technology, its new BB30-24 Converter Ceramic Bottom Bracket has once again proven that a little creativity often yields exceptional results.

With the new BB30-24 converter, Rotor makes it possible to install a conventional 24mm spindle diameter in BB30 frames. It uses Enduro ceramic hybrid cartridge bearings for smooth turning cranks and no wasted effort. They're the same 6906 bearings as a BB30 or PressFit 30 bottom bracket system. Rotor's new, non-contact labyrinth seals were also added, providing both a silky-smooth feel and unparalleled protection against dust, water, and mud.

Rotor also thought to improve the plastic caps that snap into the bearings. We often call them dust caps, but they have a structural place in the bottom bracket system, providing a bit of compressive relief in the slip fit between the spindle and the inside diameter of the bearings.

The Rotor BB30-24 Converter Ceramic Bottom Bracket is available in the colors Black/black and Red/red. It will fit all BB30 frames, and is compatible with cranksets using 24mm spindles.

  • Converts BB30 to 24mm spindle
  • Hybrid cartridge bearings
  • Non-contact labyrinth seals

Tech Specs

[bearing cups] aluminum, [bearings] ceramic
Shell Type:
Axle Type:
Claimed Weight:
Black/Black, One Size: 120g
Recommended Use:
Manufacturer Warranty:

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Here's what others have to say...

Can I use this BB with a Dura-Ace FC 9000 crankset?

Responded on

Yes, this will work

Avg. ride time: 4h 1m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.
5 5

Superb Product

  • Gender: Male
  • Familiarity: I've put it through the wringer

Like so many others, I have experienced the BB30 blues: a squeaky, creaky, snap-crackle-pop bottom bracket, so poorly designed that it must be cleaned and re-lubed every 300 miles of use. Rotor's converter solves the problem. The only criticisms I have of it are that there is a slight weight penalty compared to the original BB30 and the pretty anodized surface mars easily upon first installation and removal. Using an aluminum removal tool (e.g. the one made by Chris King) helps minimize the marring. Otherwise, a great product. One correction to the above description: the bearing are 6905s, not 6906s.