I am in the process of converting a Trek 1000 road bike for the CX season. I swapped out the fork for one with Canti mounts. Due to wheel clearance I am currently running without a rear brake so some thicker tires will fit. However, there is still minimal clearance. Any suggestions for rear brakes which will allow some tire clearance and mount to road caliper mounts.
How safe would it be to ride with no rear brake? I know it provides minimal stopping power but due to some of the steep descents it will likely come in handy to avoid flipping over the front bars.