I've been cycling for a couple of years now, just leisurely with a couple of big rides a year (big for me, 60 miles). I've been doing this on a Dawes Giro 200, the flat bar bike but now I want to get a proper road bike, as from experience, I know it makes a difference. Anyway I'm on a budget and have found a nice bike on wiggle (and a few other webistes). Problem is it's going for a good price because it's last years stock and only in 50cm frame (measuring from top seat-thingy, not middle of top-tube). I have 28" leg and am 5' 6" and am wondering if it's worth a gamble (I can send it back but it'd be quite a bit of hassle and you're not allowed to ride it). It's only 2cm smaller than my current bike, so with racing geometry, would that be a bad thing? Sorry for the long winded message.