My wife is considering a bike with disc brakes. While poking around on-line I found this website:
It details how disc brakes can actually cause a front wheel to suddenly come out of the drop-outs and cause a serious crash.
His reasoning looks OK, but there are thousands of bikes out there with discs. Part of me thinks that if this were a serious problem, we'd hear more about it.
Should we steer clear of discs?