This **
This has all been resolved, more than a century of trial; error has provided the correct answer.
For most road riding 700c is best, for offroad 26'' is best.
29 was brought in to make 26 look inadequate because the bike industry flooded the world with 26'' bikes that were built to last a hundred years.
29 is a meme, it's for tards, 27.5 is more reasonable, byut 26 is still best by any metric you care to examine.
Rigidity, lightness, acceleration, durability, traction of rough and loose surfaces - The industry needs to sell more bikes so now and again they come up with a new 'standard', and all the consoomers jump onboard because they lack immunity to advertising.
