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.
redhead said:
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.
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.
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.
"I love freedom dearly, ideally, in theory, but in reality we're not there yet--Not nearly."--Cold Duck Complex ------------------------------------------------------------------------ gerblefranklin's Profile: http://www.unicyclist.com/profile/4295 View this thread: http://www.unicyclist.com/thread/45095
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."
subsonic87 said:
How is being able to get around (stylishly, no less) impractical, exactly?
I hope you don't expect any daily life practical applications of a monstrosity like this, because there are none.
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.
-- johnfoss
John Foss, the Uni-Cyclone "jfoss" at "unicycling.com" -- www.unicycling.com
"Spudman" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
mscalisi said:
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.
Quoted message said:
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.
