Chris King Bsa Threadfit 30mm Bottom Bracket with stainless steel bearings

Built on the familiar BSA threading, the ThreadFit™ 30 is reliable. A silky smooth, long-lasting bottom bracket built around our angular contact bearings that wear in instead of out. The ThreadFit™30 is made for 30mm spindles.

Fully serviceable and backed by our 5-year built-to-last warranty this bottom bracket will outlast your bike. Built to ultra tight aerospace tolerances we use machined Delrin spindle sleeves to create a perfect, and precise, fit between cranks and frame, providing ultra low drag, and a butter smooth feel.

Our our ThreadFit™30 is ready for a wide selection of cranks.

The Fit Kit for our ThreadFit™ 30 with 30mm spindle cranks is available here. The Fit Kit for DUB cranks is available here.

Engineered, manufactured and assembled in Portland, Oregon USA
King Lifetime Warranty
Legendary made-in-house bearings
Available in 10 beautifully anodized colors
A Fit Kit is required for use and included in the purchase price
Ceramic bearing upgrade available
Uses Chris King bottom bracket cup tool for installation