I had a B-17 and it was great. I went to the Flyer because I have a well padded backside and thought it would be more comfortable. That was 5 years ago on my commuter and it still has not broke in or near as comfortable as the B-17. I am just stubborn and stupid to have kept it this long. I am trading my Specialized Sirrus for a Kona Sutra (which comes with a B-17) and will be sooo happy.