As always UniGeezer, your videos are a hoot to view.
I honestly can’t imagine myself going 18 MPH on a unicycle (foreseeing myself doing a horribly disfiguring face-plant). You, however, make it look so easy!
A couple questions for you:
1. What’s the weight of your “geared” unicycle?
2. What are the weights of your lightest & heaviest unicycles?