You guys have it all wrong. If you are on a unicycle, what you want is to be able to feel the bumps in the ground, and have solid control of the unicycle. Having suspension in a unicycle, besides for just the seat, will create a totally unresponsive unicycle that is hard to control, because any minute wheel corrections to compensate for a bump, will be totally lost in the suspension. It’d be like riding a chain-driven giraffe with a loose chain. When you need input NOW, you’ll get it shortly after, which will by then be too late. The only kind of suspension I see any use for is for the seat, and even then, only minimal amounts. You forget that you are relying on constant control of that single wheel to stay up, where as on bikes, no matter how much the wheels are moving in relation to the frame, your feet are always on the control inputs, the pedals, which are also in the exact same position in relation to the rear wheel.