Originally Posted by TRaffic Jammer
What's the advantage to racing a single?
Open to debate. Perhaps marginal weight savings. Simplicity. Depending on how well you set it up, you might be less likely to drop a chain.
For me, my road compact double (50/34) would not have worked well in a race, so the simplest thing was to convert it to single 42t.
Another way to go, which is pretty clever, is to set up the front with, say, a 44/38 combo, and you pretty much choose one or the other ring for a given course. Boggy muddy mess, use the 38, fast hardpack, use the 44.