If you're frame hasn't been made for rear discs mounts I wouldn't put them on. The forces that act
on the frame from rear disc are different, greater and more concentrated on the chain stay than your
standard V's. You could be asking for broken frames IMO.
Also, even though I love discs brakes, for the most part they just hold an extra pair of pads for
me. Most of my braking probably %90 is up front. Unless I'm getting techy and need to do some
stationary hops (apply full braking force front and back and hop like a bunny) V's will more than
suffice for rear brakes.
Why bother fecking up your frame with that BS?
The mind serves properly as a window glass rather than as a reflector, that is, the mind should give
an immediate view instead of an interpretation of the world.