SRAM DUB Wide BB30 Bottom Bracket - BB30 68mm Road Black Model-Aluminum Shimano changed to this sometime

Shimano changed to this sometime in 2013

close-fitting glove is needed like driving

this ski delivers ultralight feel

The CNC-machined aluminum construction with cooling fins guarantees durability and efficient heat dissipation

We have had success with this as a cover wax but it can be used for layering up as well

SRAM DUB Wide BB30 Bottom Bracket - BB30 68mm Road Black Model-Aluminum Shimano changed to this sometimeSRAM DUB Wide BB30 Bottom Bracket BB30 68mm Road Black. The SRAM DUB bottom bracket series has a simple job to connect crankarms and protect the smooth long lasting application of power to the drivetrain. SRAM engineered the oversized DUB spindle to work across every bottom bracket standard simplifying crankarm compatibility. Designed for use with SRAM Wide Cranksets Gutter Seal Technology drastically improves sealing against the elements Sealed