You will enjoy the 25's; can't give you any longterm opion, but I just put Conti Gators on yesterday and really enjoy them. I was riding Vittoria Pro Slicks (23's) for about a year and honestly, not any real complaint. My rear blew out this week and I just replaced it with another Vittoria. I prefer the 120 TPI, more durable. I think the higher TPI and lighter weight is more prone to flats. Interestingly, I did the Philly Gran Fondo a few weeks ago and all the major tire/wheel troubles seem to be with the high end wheels.