Originally Posted by
wunderkind
A good set of V-brakes is more than adequate.
If you ride through rain and mud. Then yes, disc brakes have an advantage. Actually I don't even know you need rear disc for a commuter. The front brakes handles most of the stopping. With a commuter that has rear discs, the rear rack choices are reduced significantly. Not to mention added weight.
Yet disc brakes excel, and the rear rack choices aren't hindered on any of the numerous bikes that mount the caliper in the chainstay/seatstay area. Rest you just use a disc specific rack.
Sorry, this is the type of response that I always expect from someone that's never owned them.