The SRAM Eagle S100 crankset uses SRAM's PowerSpline interface, a splined bottom bracket standard separate from DUB. A frame already running a PowerSpline bottom bracket accepts this crank directly, while a DUB-only setup needs a different crankset or a bottom bracket swap first. That distinction decides whether this crankset drops onto a current build or requires other changes. What Our Gearhead(R) Experts Are Saying:"I dropped this on a small frame that kept catching pedals through rock gardens, and the 155s cleared the same lines a longer crank couldn't. The shorter arm doesn't change bottom bracket height, so the clearance gain comes from the crank alone."