When running a 2x10 on a fatty, is the 38/24 or 36/22 pretty much the "norm"? I've been looking at Sram, Shimano and Raceface cranks. I did find a Raceface Turbine that had a 40/28 but am not sure that it is compatible with a fatbike. I am new to picking out my own components so bear with me if these sound like stupid questions. What do you guys think about a full XT build?