I'm about fed up with having so many flats. I've tried Conti 3000GP, Veloflex Paves, Vittoria Corica EVO CX all with the same results - flatted rear tires. I'm lucky to get 200 miles on average between flats. This year alone I bet I've replaced close to 10 tubes. I like to run my tires between 115 - 120psi which is well within thier ratings. Maybe my fat 185lb frame is too heavy. No one else in my ride group even comes close to having similar stats. I'm quickly getting a reputation for having a love affair with the rear wheel. Anyone else experiencing similar circumstances. Better yet, is there a recommended bullet proof tire.