Road Geometry Versus Gravel Geo

[.RJ]

Originally Posted by osbk67

There are tradeoffs with every added millimetre of tyre width, both in aerodynamics and weight.

That makes a fundamental assumption that wider tires are less aero - but are they? One of the US gravel racers (Dylan Johnson) found that his 29x2.2 race kings were more aero than narrower tires. Could be unique to his setup, but maybe there's something to be learned there. And then there's zipp's new gravel wheels with a 30mm ID.

So who knows, maybe in 10 years the wheels, frames and other tech will shift what those tradeoffs are... PR at nearly 30mph shows there's already a hell of a lot gained with the new stuff.