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Chris King
ThreadFit 30mm Bottom Bracket - Ceramic

5 out of 5 stars
1 Review

Out of Stock

Don't worry though, we have a lot more Mountain Bike Bottom Brackets in stock than that.

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Why We Like The ThreadFit 30mm Bottom Bracket

Whether we're building out a fresh rig or replacing our bottom bracket after far too many dusty miles, we trust that the Threadfit 30mm Bottom Bracket performs even better than it looks. Built for 73mm threaded BSA shells and 30mm crank arm spindles, the ThreadFit acts with the silence and precision only a threaded bottom bracket can.


  • Top-tier bottom bracket for creak-free performance
  • Precise threaded design machined in Portland, OR
  • Fits 30mm crankset spindles and 73mm BSA shells
  • Lightweight ceramic bearings offer unrivaled durability
  • Some cranksets may need separately sold conversion kits
  • Item #CKG001N
[cups] alloy, [bearings] ceramic
Shell Type
threaded external
Shell Width
73mm BSA
Crankset Compatibility
[crank spindles] 30mm
1 BB assembly, 1 dust sleeve
Claimed Weight
bike maintenance
Manufacturer Warranty
5 years

Overall Rating

5 based on 1 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 0 reviews
5 Stars - 1 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

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5 out of 5 stars

November 25, 2021

Ceramic for mountain biking!

I've put it through the wringer

If you ride conditions that end up washing out your bearings often, then ceramic is for you. We had one seal get opened up. Even without grease, the bearing was able to be revived to its original glory with a flush and fresh grease. No need to unfreeze a rusty steal bearing and live with the decrease in performance due to the rust etching the bearing.

Chris B