[zankly]

How do these work, i.e. there doesn't seem to be anything in the center of the wheel. How do they work?

[fabianmg]

https://www.google.com/search?q=motorbike+spokeless&client=f...

[close04]

Here's a better angle: https://scdn.slashgear.com/wp-content/uploads/2019/12/apple-...

[jayd16]

Its two separate wheels that rotate independently, probably using ball-bearings.

[p1mrx]

So it's technically only $87.50 per wheel. By Grabthar's hammer, what a savings.