From the website,
“A flagship frame like this needs a partner in crime, and we’re not settling for anything less than SRAM X01 1×11 transmission. The Codeine doesn’t run a front mech, why? Because we didn’t want it to. Instead we focus on the innovations that have transpired recently in chainguide-free, one-up-front gearing. That’s where SRAM and X01 come into things, it’s about as simple as performance gearing gets, and exactly what you need on the trails, with a ratio that can climb walls and enough top-end bite to propel you through and beyond any line”
Seems like you have settled for something less, X1