[Bouncingsoul1]

I'm not sure which point you are trying to make with the bikes. For road racing the UCI quite famously sets quite strict standards. For "normal" use, if you live within the US or EU will also have some standards (mostly conserning road saftey). Of course you may cherry pick some exceptions, but IMO this doesn't drive the point.

[prmoustache]

UCI only has power on formats [1] used in race. It definitely influences the market but it has no say on which width of handlebar can I use on my own bike as long as I don't pin a number in a UCI sanctionnd race.

[1] I prefer using that word because most aren't really standardised.

[PaulDavisThe1st]

And also, not sure how the ratios are today, but 8 years ago, an order of magnitude more people raced bicycles in triathlons than in UCI sanctioned races, where the UCI has no control.