Chris King ThreadFit 30 Bottom Bracket fits 30mm spindle cranks in 73mm BB shells and SRAM DUB cranks.
ThreadFit 30 bottom brackets are silky smooth and long-lasting thanks to Chris King's legendary, angular-contact bearings, both steel and ceramic, the best in the industry. They actually get faster over time as their contact surfaces wear, because they are built to ultra-tight aerospace tolerances, using machined, Delrin-spindle sleeves to create a perfect, and precise fit between cranks and frame. That's where the low drag and butter smooth feel come from.
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
Bottom Bracket Type: DUB (29mm) | |
Bottom Bracket STD: English (BSA) | |
Frame Interface: BSA/English Threaded | |
Black | Mfg PartNum: ABB1 |
Spindle: 30 mm | |
Silver - Polished Finish | Mfg PartNum: ABS1 |
Spindle: 30 mm | |
Matte Jade | Mfg PartNum: ABG2 |
Spindle: 30 mm | |
Gold - Polished Finish | Mfg PartNum: ABY1 |
Spindle: DUB | |
Matte Black | Mfg PartNum: ABB2 |
Spindle: DUB | |
Midnight - Matte Finish | Mfg PartNum: ABZ2 |
Spindle: DUB | |
3D Violet - Polished | Spindle: DUB |
I purchased this to replace the Rotor BB I was using with a rotor power meter crank on my Crux. Smoother spin and a tiny bit more side to side adjustability, which allowed me to better center my crankset. Worth every penny! Oh, the sleeve is a nice addition, the Rotor BB did not have one. Had to order the 68 width, but worth it.

