I have been wanting to have a faster unique unicycle for some time. I all so would like to have a 3 wheel verses a Geared Gaff. I think the graff it great but not for me. So if it was a 3 wheel what would be the best way to get the fastest speed, here are my thoughts. I would like 3 wheels over two because on two one must pedal backwards to go forwards. I think a 24 on top. Then a 20 in the middle. Then another 20 or maybe a 16 or 12 on bottom. This is the most practal I think. My other Idea Is a 26 to a,24 then, 20. This would be another option. I have allso fiddled around with a very small wheel In the middle.
All of the above would be custom built( I may get it for free from a mechanist friend of my dads).
Here are my questions.
What is set up would be the fastest.
What are some do’s and don’ts on multi-wheels.
What are you thoughts?
A three wheeled unicycle with a 24" top wheel will have an effective wheel size of 24" regardless of what wheels you have below it.
Hot bean paste! What a funky idea!
And it would be a really tall graiffe.
I think not. If a big gear turns a small gear, the small gear has more RPM than the big gear. So if a 24" turns a 12" on the bottom, the effective size would be a 48" wheel.
I think it’d be pretty awesome.
EDIT: never mind.
Heh heh, what was I thinking??
Aww shucks! 
So a 26, would be fastest but how redickuless would it be to try and gear up the top wheel?
Maybe just maybe I can make a graff greard BUT have it geared like a b*ke with a hand shifter?
I wish you the best of luck with that one, I’m sure it’s far harder than it sounds 
My memory is telling me this has been tried before, but I can’t remember who by/when/if it even happened. Someone else around here may know for sure.
-Matt
redhead, I dont think it would be possible to pedal backwards with a Derailleur.
someone addressed this issue to me when i was (i still am) building my giraffe. Just locking up the hub won’t work. The deralleur only takes the slack of one direction. the solution to that would to somehow fit 2 derailleurs on your geared uni.
also, i didn’t use a derailleur because i was stupid and left that little plastic gear thing on it, and when i welded too close to it, it burst into flame and i couldn’t put it out. it was like jet fuel. it was cool, but i was mad at it.
all 36 inch wheels would be tight
…and tall (10-11 ft), fast, and scary!!
I like to call them bikes.
I hope you don’t expect any daily life practical applications of a monstrosity like this, because there are none.
…a trike actually.
Lots of things that are fun have no daily life practical applications…like…ummm…unicycles.
How is being able to get around (stylishly, no less) impractical, exactly?
Ok Ok, I retract my statement. …still, I don’t think many people look at a unicycle and say “My, that sure looks practical, I think I’ll pick one up.”
Official new Term for Bikes.
(Geared) Multi-Wheeled Unicycle.
Or GMWU for short (gim-woo).
True. Multi-wheelers are not only heavy, but more prone to damage when dropped. Add speed to that and you have a recipe for lots of repairs!
Multi-wheelers are great for shows and parades. Stick with three, because 90% of your audience won’t be impressed by (i.e. notice) the difficulty of pedaling backwards. 95% of them will ooh and aah at the greater size of a 3-wheeler.
If unique is more important than light, practical, and easy to pedal, you could do something like this.
Re: Geared Multi Wheel Unicycle
“Spudman” <Spudman@NoEmail.Message.Poster.at.Unicyclist.com> wrote in
message
news:afc0368df7002f42ab70fb1218a68580.1zc25a@NoEmail.Message.Poster.at.Unicyclist.com…
>
> mscalisi wrote:
>> A three wheeled unicycle with a 24" top wheel will have an effective
>> wheel size of 24" regardless of what wheels you have below it.
>
>
> I think not. If a big gear turns a small gear, the small gear has more
> RPM than the big gear. So if a 24" turns a 12" on the bottom, the
> effective size would be a 48" wheel.
>
Sorry: the original 24 inch effective size is correct. Just consider what
length of rubber moves past the contact point for both wheels: it is the
same length regardless of relative wheel sizes. that length is a measure
of how far you move along the ground. In any rubber to rubber
multi-wheeled uni this will apply. The top wheel size defines how far the
uni will move per revolution regardless of how many other wheels you have.
To gear up further than that you need a gear train, not a rubber-rubber
contact.
So in your case the 12 inch wheel rotates at twice the speed, but each of
its revolutions is only half the distance.
Nao
Re: Geared Multi Wheel Unicycle
“Borges” <Borges@NoEmail.Message.Poster.at.Unicyclist.com> wrote in message
news:85eb3f47334040e0c37e51496153dc00.1zd8qq@NoEmail.Message.Poster.at.Unicyclist.com…
>
> If unique is more important than light, practical, and easy to pedal,
> you could do something like this.
>
>
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Now THAT looks fast, if it can be made to work.
Nao