Thanks to updates to the UCI’s rules concerning frameset shape (the cross sections of certain tubes can now be deeper for the same width), new aero bikes have been released by almost all the major brands to take advantage of the drag-reducing benefits the modified rules could allow. This has reinvigorated the aero sector in some respects. The new bikes reportedly test faster than old designs, and the ones I’ve had the opportunity to ride have indeed felt quick. We’ve seen some interesting new designs, if nothing else. But in other areas, little has changed.
Tyre choice is one example: 28mm stock tyres on an aero bike is still a rarity. The new generation of bikes
