Originally Posted by
topflightpro
My wife's new Giant came with a new Force AXS Quarq. But I don't know what DUB refers to.
DUB is a BB spindle specification that SRAM's pushing. It's a 29mm spindle as opposed to the 24mm one found on Shimano/GXP. They are making various BB's that will accommodate DUB cranksets, but my understanding is the BB86/90 pressfit cup diameters are so narrow (because they were designed for 24mm spindles) that to use it with a 29mm spindle they need to use really small bearings.
It's just another in a long line of "what the f were they thinking" ideas.