Originally Posted by
63rickert
...29" and 27.5" are American marketing BS and perpetrators of such should suffer flats every hour on the hour 'til end of time.
With 26" tires being a legacy mtb size, 27.5" becomes a very good description of the contemporary fatter bike tires that mount on 584mm rims.
And with 29" being a dominant XC-racing standard with closer to normal-width mtb tires, 29" is logical and accurate as well.
Now 29" (622mm, 700c) rims have moved into the fatter-tire territory of Enduro bikes, which means that 29.5" might be a better description for those.
The marketers need buzz-words, simple descriptions to distinguish new categories.