OK, here we go, confession time. I am 350+, I had Bontrager 700/35s on my GF for over 1000 miles. I was talking to the LBS guru, and we decided to go with Continental 700/28 100lbs tires. I have not had a flat, nor have I blown a spoke, and I live in north east Ohio where the roads are garbage. I like the improved look of the tires, but I have not noticed a dramatic improvement in switching to these tires. If I do start blowing tubes I will switch back to the Bontrager 35s, but if not, and I need to replace these I will look for the same, because the slicks are quiet on the trainer. LOL.