Originally Posted by ZachS
did you measure how much your speed/time actually changed?
Marked distance, granted, it was just a supershort 100 meter sprint, but I hit my max cadence and a higher ground speed faster on the lightweight. That's the only standard I was judging by, the acceleration to top speed and apparent effort over a flat course with warm muscles. Gearing was comparable, by the way. Like I said, it felt like I was rocket propelled! As to how the bike would ride on a long ride? I don't know! It felt pretty comfortable ergonomically speaking. I've always ridden steel frame and this was my first time on an Aluminum frame (No kiddin'!). I just wanted to get a feel for what my new road bike would feel like (Well, newto me!) with the 531 frame. It's about 1.5 pounds heavier than the Giant, so should be roughly similar.