We manufacture bearings, so we build bottom brackets. The T47 is a standard we helped develop, a response to the tight-fitting, imprecise and often noisy bottom bracket shells that appeared on the market a few years ago. The T47 offers the advantages of larger bottom bracket shells, primarily frame stiffness, with the advantages of traditional threaded bottom brackets, precision and silence.

ThreadFit™ T47 30x fits 68 mm and 73 mm shell widths with 30 mm spindles.

This bottom bracket comes with the legendary King angular contact bearings, in steel or ceramic. These are the best bearings in the industry and they get faster over time as their contact surfaces wear in.

You want this crankset because it offers very low drag. You want this bottom bracket because it can be opened, cleaned and repacked for years of faithful service. You want this crankset because you don't want to think too much about your crankset.

The fit kit for our ThreadFit™ 30 cranks with 30 mm spindle is available here. The fit kit for DUB cranks is available here.

King Lifetime Warranty

Legendary in-house manufactured bearings

Ceramic bearing upgrade available

Threaded security with PressFit 30 shell stiffness

A fit kit is required for use and included in the purchase price

Designed, manufactured and assembled in Portland, Oregon, USA

Uses the Chris King bottom bracket cup tool for installation