The ROTOR PressFit 4630 bottom bracket is for frames that are non threaded and have a 68-86 mm width bottom bracket with a 46 inner diameter bottom bracket shell. This is for using a 30 mm crank spindle with the PressFit30 frame. This is a popular bottom bracket standard around the cycling industry. Available in various bearing options and two different colors in an Aluminum cup.
Compatible with PF30, BBRight, and BB386 Frames.