I’m just over 6ft and a large with the standard 50mm stem fits me like a glove, I could have gone XL and used a super short stem, but the handling with a 50mm stem and short 44mm offset is amazing.
I was particularly surprised how it handles low-speed; there’s a mega, mega tight hairpin on a section of Llandegla (dave the fox if anyone knows it) and on every other bike I’ve never been able to carry any speed around it, either the front wheel washes if you try to go to tight and fast or if you go wider you just have zero speed. First time on the Spur I stayed super tight to the apex and carried ungodly (for me!) speed through it without really trying. No washing out, no sliding wide, just tonnes of grip and plenty of speed.
Honestly, the only downsides I’ve found on it is the paint is a little thin (invisiframe is a must), especially compared to my old T130 which seemed to have 6 inches of paint on it and was battered for 4 years with hardly a big mark on it. The back end also has a few fiddly bearing shields/spacers where the swingarm bolts to the rocker, which went walkabout when I took it apart to check things over, but that is it really, pretty minor in the grand scheme of things. Ohhh and they are like rocking horse poo at the minute, though my LBS (Tweeks) got 2 large GX builds, one of each colour, delivered yesterday apparently.