Geared 36

These two Cokers exist 3 hours from each other. We should plan a big
ride-off with lots of Seattle and Vancouver riders. It would be a gas
to have a geared unicycle weekend followed by copious qunatities of beer
and unlikely technical discussions.

I think Kris was clocked going 20mph (32kph) on his in a radar gun trap.
He asked the cop to measure his speed. BC cops are pretty accommodating.
I'm a pretty good story embelisher so that could all be wrong.

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I'd almost be willing to drive up for that!

I'm very interested in how a geared 36er compares to a geared 26er. I'm
particularly interested in knowing if you get close to the state of
nirvana reachable on a standard 36er. I like the idea of cruising at
15mph without spinning like a maniac, but not really interested in
face-planting at that speed.

20 MPH doesn't seem that fast for a geared 36er. You know...considering
it's Kris. Then again, that was probably just his cruising speed.

harper said:

*These two Cokers exist 3 hours from each other. We should plan a big
ride-off with lots of Seattle and Vancouver riders. It would be a gas
to have a geared unicycle weekend followed by copious qunatities of
beer and unlikely technical discussions.

I think Kris was clocked going 20mph (32kph) on his in a radar gun
trap. He asked the cop to measure his speed. BC cops are pretty
accommodating. I'm a pretty good story embelisher so that could all be
wrong. *

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mscalisi said:

*I'd almost be willing to drive up for that!

*

-Almost.- Come on, Mike. Bring the 26 and I'll bring BlueShift.
California is only a couple of states away.

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harper said:

*-Almost.- Come on, Mike. Bring the 26 and I'll bring BlueShift.
California is only a couple of states away. *

Yeah, go to Oregon for the Shakespeare festival and keep going for the
unicycle festival.

Thanks, john, I don't know what the differences between those gears are,
but it made sense.

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Well, I COULD use the vacation.

harper said:

*-Almost.- Come on, Mike. Bring the 26 and I'll bring BlueShift.
California is only a couple of states away. *

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Purple Phaze all in my brain
Lately unis just don't seem the same
Tried short cranks but I don't know why
'Scuse me while I speed on by

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unisk8r - One Wheel Wander
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Thats one sweet paint job! Lets see a full pic.

David

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This is all i have right now. My digi cam sux.

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oops, try again:

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That's a nice painjob 😎 , co-ordinated with the pedals even!

Hey, what cranks are those? They look quite solid despite the triple
drilling.

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o-kO
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forged daVincis, drilled for 130/150/170.

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Wow, awesome paintjob!

How much were those cranks? Can you get them just for unicycles?

Daniel

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Seatpost and rail adapter
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they're actually tandem stoker cranks i've had for a while and seemed
perfect for this project while i figure out the final crank length. the
spider screws in to the crank, so it's removeable. prices for forged
cranks these days are likely high due to made in America...i have no
idea how much.
i've also gotten cheap cranks from recycled bike parts and drilled them
to whatever i need, but i've never tried doing triple drillings. if i
did i wouldn't consider making pedals holes less than 20mm apart.

by the way, the more i ride a geared 36, the more i like it. it was
unknown territory 2 weeks ago when i started, but already doing
freemounts no worse than my direct-drive, and getting better at low
speed manuevering. and i'm no great rider, i started uni 13 months ago.
i'll eventually try gearing more than this 1.5 overdrive.

folks, this is absolutely the future of road unicycling. if anyone knows
a company willing to make these, i'd be happy to talk. i can see
putting a jackshaft on a single-leg frame too.

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Borrow someone's camcorder and give us some Geared-Coker P0rn... I want
to see it in action!!!

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evil-nick - Unicyclist, Linux Geek, & swell guy

Never kick a unicyclist in the groin... it will only make them grow
stronger...

Fear is the mind-killer. Fear is the little-death that brings total
obliteration. I will face my fear. I will permit it to pass over me and
through me. And when it has gone past, I will turn the inner eye to see
its path. Where the fear has gone there will be nothing. Only I will
remain.

* Bene Gesserit Litany Against Fear.

It is impossible to enjoy idling thoroughly unless one has plenty of
work to do. -- Jerome Klapka Jerome

My gallery:
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Maybe this is elemental for someone with more mechanical savvy, but do
you still get the flywheel effect that Coker riders talk about, or do
you feel like you are continually exerting yourself while pedaling? It
would be nice to just put the unicycle in cruise control.

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paco said:

*Maybe this is elemental for someone with more mechanical savvy, but
do you still get the flywheel effect that Coker riders talk about, or
do you feel like you are continually exerting yourself while pedaling?
It would be nice to just put the unicycle in cruise control. *

I have never ridden a coker, let alone a geared one, but I figured since
no one else has answered this, I'll have a go.

I got about 30-45 minutes today to play around on Mike Scalisi's geared
26'er, and I noticed that after a while you could get used to riding it,
although it still took a tad bit of concentration and a deep
understanding of the obstacles you were approaching. As far as I could
tell, you definitely can't completely zone out, but it still doesn't
require absolute concentration.

I am considering making a geared 26'er with a KH spline on it for
strength. I like how the chain drive design uses readily accessable
components (relative to the geared hub), so I think I'm gonna try and
make a simple version of that. Also, it's nice how the play is in the
chains, so if it begins to wear it's easy to fix, whereas play in the
gears in the hub is much more difficult to fix.

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unisk8er, excellent work on your uni! i would like to try it, but alas,
i live too far from anyone (i think) and have little time to commute.
Harper: your internally geared hub: can i buy one, how much for one,
what spokes do you use, and how strong is it (i weigh 155 lbs., and will
probably use 140 mm cranks, if i get adept at it and decellerate
quickly, will i annihilate the internal guts of the hub?)

Unisk8er, that goes for you as well, how does your machine's
transmission fair at high accelleration and decelleration? flexing?
breaking? spontaneous combustion?

--
shadowuni - Crispety, crunchety, peanut-buttery

"No one is taller than the last man standing"
"Three phases of persuasion: Polite request, well in excess of your pain
threshhold, and spectacularly fatal."

Me: "could you replace the rim on this uni when i get the new one?"
Bike store guy: "Oh, HELL NO!!"
Moral: Cokers are big
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unisk8r said:

*
folks, this is absolutely the future of road unicycling. *

Hmmm I think you're in the right direction
but there is still the need for changing gears
two suggestions :
- 'this is tried by a french unicyclist' (http://tinyurl.com/58tj9)

- and why have two chains? could a hub with a hollow and large diameter
encompassing all that be made ?(I've been looking in that direction for
months : main problem: the bearings!)

bear (dreaming)

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Just wondering if you've looked into patenting this,
bacause i think you should...

--
theamazingmolio - A Unicylist, a juggler, and a prat

Luke Duller ([email hidden])
Never trust anything you read on the internet
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I'm an attorney myself, and I could care less about patenting this. I'm
more interested in pushing the designs, and I'd like to see more folks
try stuff like this. My only issue is that no one try to take credit
for what I've actually made, as this is, by my reckoning, the first
compact chain-geared 36 in the world. Yes, others such as Tommy Miller
(and another guy whose name escapes me) have chain-geared smaller
wheels, but not quite like this. And I give all due credit to Harper,
Schlumpf, & Unifrank for their incredible internal gear designs.

The commonality here is that once you get used to the dynamics of a
geared wheel *for purposes of speed,* you'll never want to go back to
direct drive. Granted, it's not the most manueverable uni, but if it's
a fast ride you're after, I can easily see gearing soon exceeding 1:2,
especially with the 36" application.

As for shifting, that remains the holy grail. But without these
prototypes, we're leaving ourselves in the 19th century of unicycling,
and it's about time we "gear up"!

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