It seems that numbers/geometry can be deceptive.
I sat on the ‘Small’ Whyte T130 S that Bike UK have in stock today. I was expecting it to feel markedly too small (I am 5’10”), especially as the size chart recommends it for 5’2” – 5’6” heights. But to my surprise, it felt only ‘’just’’ too small, even with the shorter, 60mm stem specced on the small version. So while I was agonising between a large and a medium, it seems that at 5’10”, the Medium should be spot on. I may even be able to get away with a 60mm stem on the medium, which would be great. Bike does feel on the heavy side, but the frame is top quality, looks really sturdy – the rear triangle is a lot more sturdy/attractive looking than on last year’s T129 for instance.
Put deposit down on a medium, expecting delivery in early October :\