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This is the Chris King Bottom Bracket Conversion Kit #21 - ThreadFit 30 Wide 73mm (for Raceface and compatible cranks). This conversion kit is also required to use the White Industries M30 Crankset with a Chris King Threadfit 30 BB. 

  • 73mm Threaded Bottom Bracket Shell
  • 30mm Cranksets (Wide)
  • Common Cranks: RaceFace, White Industries M30
  • Conversion Kit required to work with the Chris King ThreadFit 30 bottom bracket

PBB066

Chris King Bottom Bracket Conversion Kit #21 ThreadFit 30 - Wide 73mm

Availability: Small parts 3-5 days, all other products subject to long delays. Please check here for more details.
Ships To: Worldwide
Returns: 60 Day Free Returns
Guarantee:Chris King Lifetime Warranty
Made In: Portland, OR, USA

Read Before Ordering

This is the Chris King Bottom Bracket Conversion Kit #21 - ThreadFit 30 Wide 73mm (for Raceface and compatible cranks). This conversion kit is also required to use the White Industries M30 Crankset with a Chris King Threadfit 30 BB. 

  • 73mm Threaded Bottom Bracket Shell
  • 30mm Cranksets (Wide)
  • Common Cranks: RaceFace, White Industries M30
  • Conversion Kit required to work with the Chris King ThreadFit 30 bottom bracket
  • Until end 2020 you will see multiple product listings for certain Chris King products. Our standard one showing all colors available for pre-order (please check latest lead times). Plus one additional one showing what we have in stock and Ready 2 Roll. See the full list of Ready 2 Roll products here.
  • AVT.Bike is an authorized Chris King® dealer and proud to carry one of the largest selections of Chris King products available online and shipped anywhere in the world.
  • Chris King components including hubs, headsets and bottom brackets are available in 9 stock colors.
  • Other colors and product options are available depending on stock levels, so if you don't see the color or exact product you are looking for please contact us.
  • We typically ship out Chris King product in around 3 days from placing your order, but in some cases this can take a few days longer as many hubs, headsets and BB's are built to order.
  • If you have any technical questions at all on Chris King products please contact us and we'll be pleased to help you out!
  • Information on Chris King warranty can be found here.
  • Instructions on how to service Chris King bearings can be found here.
  • Technical Information on Chris King product including service manuals can be found here.
  • All Chris King products are responsibly manufactured in Portland, Oregon, USA.

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