Kinda confused here, I found a 2006 XL Litespeed Ghisallo. Thier geometry chart states it has a 58 cm top tube length. On the fit chart for competitive cyclist it shows my range from 67.8 to 69.4 for top tube length, but the Seat tube range c-c: is 58.4 - 63.6 depending on which fit it is. Does this mean I cannot ride a Merlin Ghisallo and have it be comfortable ?

Also, there is a small dent in the chainstay from what looks like chain suck. Does anyone think this is an issue ?