Ooh, can you imagine, cute little discs, and with all the carbonium in road racing, I’d imagine some nice streamlined callipers, maybe even special fairings built into the fork lovers.
Hope used to do a 140mm disc, din’t they? something like that, or maybe even smaller, would work on a lightweight road bike, no? So as for all the concerns over weight, surely road bike disc systems would be comparable in weight to a calliper system, within a very short time. Some MTB disc systems are lighter than some V-brakes.
Heard all the ‘oh but my calliper brakes can lock up a wheel easily’ arguments; it’s not just about that, it’s also how much force you can put through the levers. Braking is easier on my hybrid with v-brakes than my road bike with 105 callipers, cos I don’t have to squeeze as hard. Less tiring on the haynds. And if you’ve only got little dainty girly hands, then increased braking efficiency is a Godsend. I remember how my haynds would ache after long rides using cantilevers, then how much easier things became when v-brakes came along, and even easier when discs turned up.
So, discs are the way forward. Don’t fight progress, or why don’t you just go and live in Russia and only sing folk songs?