My wife and I just got into biking, she has had a bike before but we thought it would be a good family thing. Anyway I bought my bike about 3 weeks ago and I have been uncomfortable when I ride, not just the sit bones but all over. Took the bike back where I bought it and asked them to recheck the fit and sure enough it was one size to small. They traded me for a bigger bike and I took it for a quick 5 miles tonight(keep in mind I've only been ridding for a few weeks) but what difference it made, feels like the bike is so much faster..I'm sure its because of the fit and I'm not wasting energy. Sorry for the long post but just wanted to say I'm a huge believer in getting a proper fit.

Mark.