ThreadFit T47A 30 fitsT47 BB-Rightshells with30mm spindles.

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

You want this bottom bracket because it offers super low drag. You want this bottom bracket because it can be opened, cleaned and repacked for years of faithful service. You want this bottom bracket, because you dont want to think an awful lot about your bottom bracket.