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spotter
@spotter
Ah I misunderstood, I thought you were asking what BB you need.
If you have a standard sram pressfit BB, a gxp crankset will work with no adapters need.
I'm not sure about BB30, but my understanding is you can't do it with bb86 BB. Not with sram anyway. Rotor has options but the bearings are smaller.
I run sram pressfit BB in my bb86 frame and a sram force 22 crankset. S900 would work exactly the same.