I bought a Specialized Roubaix Expert in April. It has Revelo wheels. Since buying the bike, I have ridden 1000 miles and have broken 4 spokes on the rear wheel. The Specialized dealer replaced the first two spokes and when I broke 2 spokes on the next ride, he replaced the wheel. After 2 more rides totalling less than 50 miles, I broke a spoke on the new wheel. I am 62 years old and ride very conservatively. No jumps, no curbs no bumps. Anyone else having problems like this?