I have been hearing for the past months about twenty nine inch wheels for bikes, and seeing such at the showroom windows and on the street.
Also heard that they have a lot of advantages and a couple of drawbacks.
My question is why now? The diamond frame has been around for ages. I suspect the disc brakes and, later, the hydraulic disc brakes were not introduced right away due to technological limitations. But the size of a wheel is certainly not constrained by technology.
So why is this new fashion emerging exactly now?