I performed multiple searches and found alot of good info. I am partial to the ENOs but I've didn't really find many comments from cyldes regarding stiffness. I love the stiffness of my new XTRs but wonder if that stiffness would be noticeable on my new steel SS frame. I weigh 230lb and I used to be able to squat 600lbs although I've never broken any crankarms in the past. Since I'm a newbie to single speeding any advice would be appreciated.