Originally Posted by
chas58
I think the point is, that with many new frames you can put a 50mm tire in there on a 700c rim
For older frames, there is nothing wrong with using 650x48 - there is just going to be less of a need for this size in the future.
And ya know, its all about fashion and trends in this industry. Designed obsolescence! ;-)
This. The main benefit of 650b for most people was the ability to fit wider tires than they could with 700c. This is no longer a problem with most "modern" gravel bikes.