measuring seat tube length is kinda hard to do accurately when the bike is fully assembled.. plus people don't always know where to measure from and/or don't specify center to center/center to top. does suck when you got them to measure it twice and they still messed up
btw feel free to send any 58cm ironmen over to me
i took my ironman master out last night to try out different stem lengths and handlebar widths and i lurve it more and more each time i ride it. it feels so "aggressive".. i think i've decided on a stem and handlebars, and i have matching wheels and tires now.. i'm pretty stoked about this build, can't wait to finish it up and post some pix