I am thinking about trying to pick up a second hand prophet frame but not sure which size I need? I am 5.10, so which should I be looking at? I currently ride a medium Chameleon which has quite a short TT.

Cheers

6'2" (32" inside leg) here with a large, medium was way too small for me.

A mate of mine had the medium and he was 6ft and he loved his medium, it fitted me pretty well when I tried it and I'm 5'11"

Cheers. Looks like the medium would be best. Anyone else?

I'm 5'8" and ride a small. It fits just about right.

I'm 5'8 and ride a medium (2009). It feels long and low even with a 60mm stem. I'd say you would be best suited to a medium.

5 ft 10 and a bit. Medium. It feels shorter than its listed 23.6 top tube though, prolly due to the slack head angle and low BB, but the medium is spot on and that's from someone that prefers a shorter bike.

I'm 5'9" and rode a medium and it felt fine on the test ride I took it on. I was impressed with the bike, so good luck finding a nice one.

I'm 5'9"(32" leg) and ride a medium Prophet, happy with it.