I bought this last Saturday because it's tall and I'm an addict. Advertised as a 20'' size.
Seat tube is 615mm ctc, 640mm ctt, 35'' stand over. 36.7 pounds as pictured. 9.37 pounds frame, fork, and headset. Stem is 1.4 pounds.
Wanting a winter beater so you know how it goes.
I believe this was the only Ross ATB offered in this large a frame and that the others were about 5cm smaller, for the biggest frame.