What "slack" means is angle backwards on the head tube. For a long time, I didn't understand what it means. More slack will put you in what I've heard called the "sit up and beg" position, which is what Wahine is talking about as upright.
slight aside for Wahine - have you ever seen a graphic that illustrates the variations in body position related to bike geometry?
Last edited by Irulan; 01-26-2014 at 12:19 PM.
2015 Liv Intrigue 2
Pro Mongoose Titanium Singlespeed
2012 Trek Madone 4.6 Compact SRAM