The YST BB-0901 is a universal threadless external repair bottom bracket (Hollowtech II) for road bikes and MTB. The patented bottom bracket is sealed and maintenance-free. The bottom bracket is placed in the bottom bracket shell and screwed into itself - the conically shaped bearing cups ensure that it is centered and firmly seated. Suitable for Shimano Hollowtech II cranks (24mm axle) and bb shell width 68mm (not suitable for 73mm shell width!), colour: black, weight: 138g.