‘the most interesting part for me is that you are a bit less in height and felt ok on a Defy medium, yet I am unsure whether at 5ft 10 to go for M or M/L… ‘
Unless you are really short in the leg, the 13mm extra standover height wont make much difference. An extra 15mm in the top tube however is pretty significant if like me you’ve got long arms.
My Lynskey is a M/L and is only a 52cm seat tube, but has 55.7cm effective tt length which combined with a 120mm stem gets me somewhere close to my correct position.
Before i had this, i had a Trek 1.5 and had to have a 56cm frame that was borderline to tall for me just to get a top tube long enough, as the 54cm frame was way too short and cramped.
The madone 3 series have these same measurements, so i couldnt get one even if it was ‘the best’.
Giant TCRs and Defys would fit me much better on paper with the M/L being a 53.5 with a 56tt
Spesh would also seem to fit me with the tarmac 56 actually being a 53 with a 56.5tt and the roubaix 56 being a 51.5 with a 56.5tt.
p.s. i’m 5′ 10″ with 30″ inside leg and monkeys arms!
You do realise though that as none of the bikes you are looking at have campagnolo on them that they are all crap, dont you? 😉