I did a test ride on a '16 recently. The bike flies. For an aluminum frame, it felt really smooth, and even with what I'm sure were underinflated tires at the time, it was effortless riding, but tire clearances are limited. You'll see there isn't much gap in the chainstay, and you probably can't fit 40s, or maybe even 38s in there. I hate the SRAM shifters it comes with, though - I don't think the handfeel is very good and I find the shift method counterintuitive, as it requires more effort to shift back down versus Shimano STIs or any barends.