Eli5: Is there a reason roller skates and roller blades don’t have spring shocks?

Question

I was thinking about this the other day…skateboards are flexible, bike tires are bouncy. Why aren’t there “performance” skates with shocks? Wouldn’t that be better for your knees?

In: 2620

Answer 1

there actually are soft-tired skates. something akin to mountainboards. they only *really* work going down hill. the springiness of the tires makes it incredibly unpleasant to try and “skate”