Ultegra/105 level Hollowtech II bottom bracket
Shimano, SM-BBR60, Hollowtech II Bottom Bracket, BSA, 68mm, 24mm, Grey, ISMBBR60B
Compatible with all road Hollowtech II cranks
Wheels Manufacturing, PF30 to Ext, Press-fit 30, BB Shell: 68/73mm, Dia.: 46mm
Install 24 mm (SRAM, Truvativ, etc.) cranks on PF30 frames without adapters. The threaded design equals easy install and removal. Fits shells with a width of 68-73 mm.
