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SRAM: what it makes and how it fits
SRAM is one of the drivetrain makers whose GXP and DUB cranks, bottom brackets and complete drivetrains appear across the bikes this site covers.
About SRAM
SRAM LLC is a privately owned bicycle component manufacturer based in Chicago, Illinois, United States, founded in 1987. SRAM is an acronym comprising the names of its founders. The company produces a range of cycling components, including Grip Shift, and separate gravel, road, and mountain drivetrains from 7 to 13 speed. SRAM developed the Eagle line of mountain bike specific drivetrain components intended to improve shifting performance. SRAM was also the first to release a dedicated "one by" drivetrain with a single front chainring for road bikes.
What this means for fitment
For choosing parts, what matters is the interface SRAM uses, not the brand name. Match the crank spindle to your frame's bottom bracket shell, and the headset or seatpost to the frame's own standard, then pick the SRAM part that fits that standard.
The fitment tool starts from your frame's shell or crank spindle and returns the exact bottom bracket to buy, whether the part drops in, needs a specific bearing or needs an adapter.
Common fitment questions
The usual question with SRAM parts is whether a crank will fit a given shell. A crank fits a shell only through a bottom bracket built for both, so identify the shell standard first, then choose the SRAM compatible bottom bracket for it.
Where a crank spindle and a shell are not a native pair, a reducer or conversion bottom bracket may bridge them, which the fitment tool flags on the relevant pages.
The second question is whether the shell width matters. It does: a road shell and a mountain shell of the same standard take different bottom bracket widths, so a SRAM bottom bracket is chosen by both the shell standard and its width. Measure the shell face to face before ordering, and confirm the crank spindle diameter stamped on the axle or listed in the part number.
None of this changes the crank itself. The crank stays the same part across every compatible frame, and only the bottom bracket that carries it into the shell changes with the frame's standard.
Fitting a SRAM crank or bottom bracket?
Open the BB compatibility toolPick your shell and crank spindle to see the exact bottom bracket you need.Find SRAM bottom bracket on eBayaffiliateRelated
Sources: SRAM Corporation (Wikipedia, CC BY-SA) ยท Park Tool: Bottom Bracket Standards