So I just bought a used FSA Carbon Track crank set for $110 including the BB and the Pro Track chain ring. I have a single speed I use just like a road bike for long distances and I'm wondering if they are not good for that purpose, am I better off with Omniums? I currently have the 6KU crank set that I want to upgrade as soon as possible, I hope I didn't screw myself buying something that may not be useful.