Chris King ThreadFit T47 30i Bottom Bracket with Fit Kit 5 - T47, For 30mm Spindles, BlackThe ThreadFit T47 30i Bottom Bracket provides the security and reliability of a threaded bottom bracket with the stiffness and power transfer gains of a PressFit 30 bottom bracket shell. Included Fit Kit #5 is designed to mate the ThreadFit T47 30i bottom bracket with a 30mm spindle ThreadFit T47 30i will fit 68mm, 73mm, 83mm, 86mm, and 92mm shell widths with 30mm spindles Legendary made in house bearings Easily serviceable with a grease injection