Just bought a used 2008 Scott Addict R4 as I was told it was a Large size 56 and after measuring it found out it's actually a XL 58 size. I bought it from someone who is 6ft 4in and it has an integrated seat post that was hardly cut at all for the previous owner so is very high at the moment (please see pic). When I initially found out it's a 58 XL I thought the bike must be too big for me as I'm about 5ft 11in but is it really? It's a stunning bike and I would obviously like to keep it but if it is too big I would be better off selling it before cutting the seat post obviously. Could it be the right size? I thank you in advance for your replies.