It may sound like a minor correction, but track bikes are uncommon* on the road. You probably mean road bikes. The important difference is that track bikes do

It may sound like a minor correction, but track bikes are uncommon* on the road. You probably mean road bikes. The important difference is that track bikes do not have brakes. Most bikes on the road do. *Yes - there are people cycling on the road using bikes without brakes. However, that's not 90% - it's a small minority. Cycling on the road in the UK without two braking systems (e.g. front brake, rear brake) is illegal, and unusual. Regardless, anyone cycling without a front brake is an idiot.