I never wore one out and have had three B-17s and one now with springs on a Trek Verve+2. The +2 has no suspension and I was going to do a lot of shopping and such so decided to get the sprung saddle. All my bikes will eventually have Brooks saddles. One is a folder and I have one beater bike that is a lower priced mountain bike with only a front suspension fork. I have plans to go Electric powered on my old Trek 520 with 6000+ miles on it. It will need the B-17 to stay on it with a high powered bike. Safety and Be Well, Bluesfrog.