SRAM DUB Press Fit 41mm Diameter Bottom Bracket - 28.99mm DUB - BB89.5 - BB92 MTB 89.5-92mm Shell YGroup_7033471795245 Shimano took the flat side

Shimano took the flat side a bit further

2 41mm OD External BB Tool for installation

An Alloy crown race with a dual lipped seal to keep the muck out and the grease in

There is a high chance your bike has an empty feeling inside like something is missing

SRAM DUB Press Fit 41mm Diameter Bottom Bracket - 28.99mm DUB - BB89.5 - BB92 MTB 89.5-92mm Shell YGroup_7033471795245 Shimano took the flat sideSRAM DUB PressFit bottom brackets are where stiffness meets durability. SRAM have made it incredibly simple by integrating the relationship between chainring, crank, spindle and bottom bracket and provide a single replacement for 30mm and 24mm BB spindles options. SRAM have created a simple bottom bracket solution that provides better drivetrain performance, increased durability and stiffness without introducing a new frame shell standard to the