Angular contact bearings: Delivers ultra-smooth, low-drag pedaling for improved speed and efficiency
Ultra-tight aerospace tolerances: Ensures a perfect fit between crank and frame for reduced drag
Machined Delrin spindle sleeves: Provides precise fit and long-term durability
Openable, cleanable, and repackable: Allows for years of maintenance and service life
Available in 8 anodized colors: Offers customization and style options
Summarized by Shop
Why We Make It
We build bearings, so we build bottom brackets. The humble threaded bottom bracket is often the first part installed on a new frame, and the last one the rider thinks about during the life of the bike, but the bottom bracket has a direct effect on pedaling efficiency (read: speed). This is where you put your power into the
Shell width compatibility
30 mm
Material
Stainless steel, metal, plastic
Bearing type
Angular contact (steel and ceramic options)
Color options
Black, White, Gray, Green, Silver
Includes fit kit
Yes (varies by shell type)
Warranty
King lifetime warranty
Summarized by Shop
5.0
21 ratings
5
4
3
2
1
CK bottom bracket
First class service as always from AVT, Chris king quality
R
Ricky · May 1, 2025
One of the best upgrades you can make!
Such an obvious difference in fit, quality and feel - compared to the standard components. I add a little plumber’s tape along with the grease to keep the creaks away on a brand new bike. Works great. And so smooooth. Highly recommend.
S
steve · November 20, 2024
Threadfit 30 and custom wheels
AVT is a godsend. I’ve ordered some custom wheels through them and I couldn’t be happier. They hooked me up with a great set of HED Belgium G’s with some onyx vespers with a unique setup due to my older 2017 moots Routt frame. 135 QR rear and a 12x100 front. And they are beautiful. Also ordered a Threadfit 30 in jet matte black and it was delivered in less than a week. I can’t say enough nice things about these guys, they are amazing.