I've been riding a 49cm Motobecane Track for the past couple of years and am ready to upgrade to something with a better build. I've pretty much settled on the Kilo TT (Wabi is nice but can't justify the cost to myself) and am trying to decide between the 47cm and 50cm frame sizes:




The standover height on the 50cm is slightly higher than my inseam, but the top tube length on the 50cm (523mm) is more in line with the fit calculator, which puts me at 516-532mm. Am I missing anything obvious?

Oh and one other thing I found interesting - the 50cm looks to have the shortest wheel base, even though it has a longer top tube length than the 44cm and 47cm sizes. What's up with that? Misprint?