Originally Posted by
cafzali
GP4000S IIs are a great replacement. I used to run Gatorskin exclusively, but switched to GP4KSII's last year and have noticed no difference in puncture resistance and get a better ride.
I agree with the GP4000s or Michelin Pro 4 Comps (what I ride). I found gatorskins hard riding. The Pro 4s have been very good resisting flats. As for size, when I was 220 lbs I rode 23C tires, no problem. Now down to 179, I'm still on 23C. If you want to go larger than 23, I wouldn't go larger than 25C. A number of folks on this forum went from 23 to 25 and did not detect a difference in maintaining their average speed. I had some 28s years ago and went to 25s and saw a noticeable difference. I wouldn't go with 28s.