I swear by the Conti Gatorskins. There is however 2 types of gatorskins..the cheaper ones which are a bear for me to change and the Folding ones. Yes, they are a little more expensive than the non folding, but the aggrevation it saves me is worth it. I too am looking at getting new tires, and was thinking of changing to the Gran Prix 4 seasons by Conti but didn't know what the difference was so thanks to MartianDestiny, I think I will stick to my reliable folding gartorskin tires. The GranPrix were more expensive than the folding so I assumed they actually might have more kevlar and more strength, but guess not. Thanks
formerly known as shellyj