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Topic starter
I'm planning an experiment on one of my bikes that involves a GXP crank. I need to know how wide a GXP BB cup is and can't find this information anywhere online despite googling.
I don't have one to check - if someone knows off the top of their head that'd be great, or would someone who has one to hand mind measuring the cups for me please?
Posted : 05/02/2025 9:53 am
43mm x 12mm ( ext. dims , approx by ruler).
Posted : 05/02/2025 10:04 am
Genuine SRAM GXP is 12mm DS and 12.4mm NDS. But a Chris King TF24 (which also does GXP) is 10.1mm DN/NDS - so the spacers are doing a lot.
Posted : 05/02/2025 10:26 am
Topic starter
Perfect, thanks both of you. That information about the CK BB is particularly useful as it's exactly what I'm planning to use.
Posted : 05/02/2025 11:40 am