Here is the deal. I am definitely a Clyde. I am currently 290lbs. I gained about 40lbs this winter and have been riding trying to get it back off. I have noticed that the tires on my Peugeot road bike are getting thread bare on the sidewalls and I need new tires for the first time in my life. I have Velocity Glider 36 hole rims with shrader valves that currently have Bontager something or others 700c x 38 (on it when I bought the bike). I want something smaller and fast rolling, but with good durability. What should I look for. I have just joined our local bicycling league and have done one group ride of 47 miles and I really enjoy that kind of thing. I don't want el cheapo tires, nor do I want expensive bling. What is the best bang for my buck? Can I run 32's or smaller safely or do I need to stick with 35's to 38's? I know just enough to be dangerous. Any help would be appreciated.