I think the potential for 25mm and 28mm tyres and disc brakes to
completely transform the overall riding experience is hugely
exciting. The last 5 years have seen some real changes...
The first disc road bikes were very much caliper frame designs
with discs added in almost as an afterthough. And the first
generation of Shimano disc was not that great; finicky, hard to
adjust and a bit temperamental (not qualities you want in a
The latest version of the top bikes (Emonda, Tarmac, Altum, R5,
etc) were designed very much as both caliper and disc brakes
together; and the latest Shimano disc technology is amazing.
But the frame designs have to have compromises to be both
caliper and disc ready. The really exciting thing will be the third
generation of disc bikes, designed to be disc only, and that
singular focus will undoubtedly bring on new developments.
Something like the
3T Strada is the start of this race - a bike that throws out
the "legacy" rulebook and is designed from the ground up for disc
brakes. Yes it's an aero road bike, but with internal cable
routing, thru-axles, wedge seatclamp, and disc-only. Optimised for
strength where it's needed most and lightness where it isn't.
below: 3T's Strada aero road frameset - freed from the
contstraints of rim brake mounts, the design can be optimised for
aerodynamics, strength and comfort: