Originally Posted by TimothyH

Roller racing is still popular.

Now it is called Goldsprints.

Rollers are wired to timing equipment for competition. There is a world championship.

The equipment can be rented for parties.

This is a random example of Goldsprints at some brewery in San Francisco.

https://www.youtube.com/watch?v=pj1VhZ3gMnE


-Tim-