One suggestion, when rolling you pant legs make sure the roll is high enough so it dosen't get snagged in the chainring. I ride fixed part of the time and last week not only did the roll get caught in the chain but it snagged so bad that it pulled tight enough to rip the knee out on my pant leg. The next morning when I went out to ride there was a 3x3 piece of denim stuck to the chainring.