Chris King Thread Fit T47 30I BBSilky Smooth, Long-Lasting The Chris King Threadfit T47 Bottom Bracket is a silky smooth, long-lasting, BB built around angular contact bearings that wear in instead of out. The Thread Fit T47 provides the reliability of a threaded BB with the stiffness usually only achieved with a Press Fit 30 BB. Thread Fit T47 30i will fit 68mm, 73mm, 83mm, 86mm, and 92mm shell widths with 30mm spindles, or 68mm and 73mm shell widths with 24mm and 24mm stepped spindles. Features Stainless steel construction with legendary made-in-house bearings Easily serviceable with Chris King's grease injection tool Ceramic bearing upgrade available for maximum performance Threaded security with Press Fit 30 shell stiffness | Chris King | Threadfit T47 30I Bb | Black | T47 30I Stainless