The advantage of disc brakes on the medium to high end consumer road bike, however, is that you wear out the cheap and consumable pads and rotor, not the rims o

The advantage of disc brakes on the medium to high end consumer road bike, however, is that you wear out the cheap and consumable pads and rotor, not the rims on what might be a $2000-by-itself 700c wheelset. the large bike manufacturer sponsors of the pro teams of course want their team to ride the equipment that they're selling to consumers as the current and next model year. or at least something that very closely resembles it and sells for $2500+ at retail. look at how many trek carbon fiber madones were sold to enthusiastic amateurs during the peak armstrong years.