Originally Posted by
embankmentlb
I think there is a reason we have seen very few road bikes with disks. After all, all the parts exist. What I have heard is that the ride characteristics are not positive with a disk fork. The front disc generates vibrations that transfer through a light carbon fork that make for a frightening feeling stoping from speed. A heavy fork from say a tandem has less vibration when stopping but makes a horrible ride when on a single. The beefy fork also adds weight to the bike.
Nice theory, but it doesn't hold up. I have a light carbon fork on my disk-braked trekking bike. It brakes smoothly. If anything, more smoothly and surely than the rim brakes on my Tarmac. very confidence-inspiring.
I think you don't see more road bikes with disk brakes because the pros don't ride them. If Team Nissan mounted them up next season, 95% of BFers would have them within 18 months.