Can you ride Muni with this? With a Rotor 203mm? The Rotor is bigger than the Wheel. 
Ha! I am afraid you would have to out a ā¦@Felgenbremse on that one. 
I think Muni on a 12" would be a tremendous challenge. I did light Muni on my 16" though. And yeah, the rim brakes helped a lot.
Well, we can weld a mount for a Magura HS33 rim brake onto the fork, and then it will brake somehow, I hope. I wanted to lace a 24" RGB rim and see if it works with a rim brake. Iām a little worried that my 24" QU-AX 48-hole wheel will break on the rim after 9.5 years of Muni riding. Rim Brakes are the best brakes in the World for me for riding the Muni.
yeah, at that point it might actually be easier to just use it as a subpar pogo stick
Then it should be one of this kind. NOT!
The risk of injury is lower with a rim brake, and technically speaking, you get better performance because the circumference is larger than with a disc brake, which also means that a disc brake is subject to more wear. Itās more expensive.
This crazy saw-tooth rotor will actually give you better grip on the ground when doing 12" Muni. 
Yep, thatās just what I meant to say. An ordinary rotor would be less useful than a slick for muni.
Wow! A 10" ultimate wheel! This is the future of unicycling @ruari, @setonix, @Ulkicycling. The gain ratio is even 4.23, the equivalent of 36"/110mm or 29"/89mm.
I love the fact that you can freemount this machine from pedal-resting-on-the-ground position.
It is really impressive that you can ride this thing at all. Is it much harder than a bigger UW? It looks like you are riding with your legs and not your ancles (but I might be wrong), as opposed to the 16"/50mm.
With such a high gain ratio, I canāt help myself wonderingā¦ How fast can you even ride this thing? 
And is it even feasible to ride this up and down ramps or over uneven ground? 
Time to take it to the the trails - the tire has the perfect width
I still struggle to maintain my balance and donāt dare to spin harder. However, I doubt I could go fast on this machine, even if I learned to ride it consistently. I found that I relied more on my legs than my ankles, probably because my ankles arenāt strong enough to support my balance.
Riding this machine is more difficult than riding larger ultimate wheels. However, itās still easier than riding a standard unicycle with the seat dragged or without a frame and seat, which I can only manage for very short distances.
Itās a wide tire but I pumped it to the max pressure to let it roll easier.
Just lower the pressure, then 
. No excuses! 
Iāll level up my skill first!
I think the pedals are too far apart. In unicycle terms, the cranks are too long.
I should have had that UW. That would save me some spraypaint.
Very well done @Syoten
Indeed it is a pleasure to see you riding this impossible ultimate wheel. It seems that the shoes are the only protectors you need.
Yes, riding it on a flat field is pretty safe. But I would still wear my helmet on just in case.
would you say it is easier to trip with such a small wheel than with a bigger UW? With my unicycles and UWs I just step off, letting the contraption drop on the ground. When riding on cycle paths, there is no need to end up in a roll when UPDāing and bumping my head.