Chris King Introduces Bottom Brackets for FatBikes

Chris King announced two new BBs. An 83mm version and a 100mm version. While the 100mm is a no brainer for many fatbikes using the 100mm shell, the 83mm, while aimed at the downhill crowd may find some uses for fatbike builders who are building for non-conventional drivetrain setups. Let’s see what you can do!

Below is the Press Release from Chris King:

It’s no secret that downhill and fat bikes experience a tremendous amount of abuse putting significant wear and tear on their components. With the introduction of the new Chris King downhill (83mm) and fat (100mm) bike bottom brackets these off road titans can now rely on the precision and reliability built in to every Chris King component.

Our peerless bearings lie at the heart of our bottom brackets. Starting with high quality domestically sourced materials we create our own angular contact bearings in-house. This design virtue allows Chris King sealed bearings to wear in rather than wear out. Our bottom bracket features a specifically designed sealing system that integrates with our injection tool allowing the system to be purged and re-greased quickly and easily. This combination of strength and serviceability gives us the confidence to offer an industry leading 5-year warranty. Like the slippery smoothness of ceramic? All of our bottom brackets are also available with ceramic ball bearings.


  1. What 100mm cranks are out there that I can use with this? I know about Middleburn…

  2. This is awesome! Since I was equipped at birth with my own grease injection tool, I must say this is a very good idea! Thanks , Chris King, for making great parts right here in the USA!

  3. We’ve got a Mango Orange version on the way to the World Headquarters. future report to come. We’ve got Mr. Whirly for testing.

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