Originally Posted by
Osin83
I have a 2016 SLR2 in large that I will be converting to a 1x12 Sram GX setup with a Sunrace 10-50t cassette shortly. I want to replace the crankset and BB at the same time but am not sure which parts will be compatible with both the Frame and the rest of the drivetrain I will be purchasing.
I was thinking of going with a Sram GX crankset with 175mm arms, but there seem to be multiple sizes of BB. I most often see the Shimano UN55 recommended. I wasn't sure if it would be compatible if I went with a Sram crankset.
I think you need something like this
Sram GXP bottom bracket. You need to study the chainline question better though. Sram shows different chainline possibilities for their gx crank. I'm not sure how one obrains a different chainline with this kind of setup.