This is why I'm so pro regulations - a simple (predetermined) fact sheet that every bike sold needs to disclose.

And as society and needs evolve keep the regulation alive and modify it accordingly.

Ofc the industry is gonna bitch about it like it's the end of bike industry for good & try to gift it, but after a year it will be normal, costs negligible, profits the same - but the market more transparent.

And for most things, like this bike thing, it can be super a simplistic requirement, no need to be to the kg exact, it could be defined by categories of 50kg even. However the weight class should mean under a certain higher-than-usual stress on the constriction (bikes mostly arent meant to be used stationary).

But yes, manufacturers should test their products to the breaking point, not let costumes do it (unless it's Bethesda, then it's just expected).

Also - I've recently helped a 130kg friend get an office chair, nothing too demanding I know, but I noticed how weight specs, if even provided, seemed a bit random. Even (separately provided) piston specs were different for what seemed the same model.