I just rode a motorized swingbike about 18 miles to work. I nearly destroyed the rear slick. The chain was rubbing the sidewall. I may have to get a narrower tire on my lunch break. The headlight shook loose. I stopped to tighten it. The drive chain stretched enough that it fell off twice. The wires for the ignition broke from the vibrations. I fixed that on the way too. At least it still runs. Maybe I should have started with a smaller distance. I'm not sweating but I think it would have been faster to pedal my fixed gear.