Geared Uni Questions

There was no geared Coker on the Laos unicycle tour.

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Denali
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The KH/Schlumpf geared hub will have a standard bearing width (same as
the Coker, KH, Nimbus frames, etc.) so potentially could fit all these
frames. It doesn't need an additional hole in the side of the frame
to fit a lever arm (like the existing Schlumpf hub).

However, there is one difference: Most bearing housings have a lip on
both sides. To fit the new KH/Schlumpf hub, the inside lip of the
bearing housing (the side closer to the flange) cannot be deeper than
2mm.

It doesn't have to be exact, so potentially you could take any frame
and grind down the inside lip to make it fit. Easier to do this with
an aluminum frame though. In future (after the end of August), all
KH frames will have a low-profile lip on the inside of the bearing
housing to fit the KH/Schlumpf hub.

Kris

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danger_uni
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This might be a stupid question but is there a way to lock the hub into
a certain mode so the button cannot be accidentally pushed? A while ago
I was thinking that a geared trials uni would be good for street riding
because the extra speed could help clear stairs and stuff like that but
if someone does a crankflip that is not landed perfectly then the hub
could be shifted on accident and that wouldn't be good.

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James_Potter said:

I think we could just apply the same cure we use for bread, to humans.
just scrape off the cancer with a butter knife, then put jelly on it,
and eat it...mmmmmm

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The buttons can be adjusted outwards or inwards, which makes them harder
or easier to shift. If you adjusted them so that they didn't stick
out at all, you couldn't accidentally shift.

Kris

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danger_uni
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is it possible to idle on a Guni??

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irvinegr

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yes

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James_Potter said:

I think we could just apply the same cure we use for bread, to humans.
just scrape off the cancer with a butter knife, then put jelly on it,
and eat it...mmmmmm

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irvinegr said:

is it possible to idle on a Guni??

Why wouldn't it be?

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unisteve

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la vie est belle...

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i donno. i know nothin about them. (i thaught this cuz i cant idle on
my geared bike)

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irvinegr

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danger_uni said:

The KH/Schlumpf geared hub will have a standard bearing width (same as
the Coker, KH, Nimbus frames, etc.) so potentially could fit all these
frames. It doesn't need an additional hole in the side of the frame
to fit a lever arm (like the existing Schlumpf hub).

However, there is one difference: Most bearing housings have a lip on
both sides. To fit the new KH/Schlumpf hub, the inside lip of the
bearing housing (the side closer to the flange) cannot be deeper than
2mm.

It doesn't have to be exact, so potentially you could take any frame
and grind down the inside lip to make it fit. Easier to do this with
an aluminum frame though. In future (after the end of August), all
KH frames will have a low-profile lip on the inside of the bearing
housing to fit the KH/Schlumpf hub.

Kris

Thanks. This will be a possible future purchase for me then! Cant
wait to hear more about this product.

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siafirede

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irvinegr said:

is it possible to idle on a Guni??

Yeah, it is possible. It will be harder though. If you were to idle
on a 24" geared up to a 36" equivalent, then it will feel sort of like
idling on a coker.

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siafirede

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Denali said:

There was no geared Coker on the Laos unicycle tour.

Oh, by looking at the equipment page on the site it seemed as if Hans
was going to be riding a geared 36". I guess he went with a different
set up.

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siafirede said:

Oh, by looking at the equipment page on the site it seemed as if Hans
was going to be riding a geared 36". I guess he went with a different
set up.

Hans rode a 29" schlumpf in Laos, but he does have two schlumpfs and
one is a 36" one.

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Gilby
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siafirede said:

Last question...which I probably could find by searching some more, but
I figured it would be easier just to throw it in with this post...Ken,
how did the schlumpf 29 compare this tour with the year before when you
rode a coker?

I rode a Coker last year in the Denmark tour and then a Schlumpf in
Laos. These are different tours, so it's hard to compare them (Denmark
is flat, Laos was not). On a Schlumpf, you can definitely go a lot
faster on average, though I was not very good on the uphills. However,
I think on the Schlumpf, you pay more attention to what you are about
to ride over and therefore, you don't look up as much at the scenery
around you. The difference is in the pull on the frame when in geared
up mode, where if you hit a bump and need to catch yourself from
falling, there is a pull forward on the frame that throws you off a
little more, so it's more difficult to correct from a sudden loss of
balance. Having said that, I definitely love riding the schlumpf more
than a coker. On a miserable 'ride I did yesterday'
(http://www.ironmanbikeride.org/) -- in the rain with a headwind much
of the way -- it was very nice to have the 1:1 gear ratio with a 29"
wheel as it was very hard to fight the headwind.

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Han's was going to ride his 36" Geared Coker but in the end decided to
ride his 29" Schlumpf instead (just as well, I think his Geared Coker
used a 1st Generation Hub).

The Laos tour was not as hilly as the AUT, and the climbs were more
gradual. The Schlumpf was less stable on the flat, but definitely
faster. On the downhills I think it was probably about the same or
slower depending on how steep it was. (It should be faster, but except
for wide open roads I think I held back more than I would have with a
Coker).

Day 4 would have been much nicer on a Coker- with a Schlumpf I had to
really concentrate on the dirt road, whereas a Coker would have been a
smoother ride.

It was nice to have 2 gears though- for example being able to switch to
low gear for our urban ride around Bangkok. I also liked climbing with
it- you can keep up a much higher cadence. And it was much easier to
transport on the plane etc.

I think I would have been equally happy riding either the Coker or a
Schlumpf on either tour- they both have their advantages.

Ken

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GizmoDuck

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Do you think that a geared 36" would have been better in some
situations? For the dirt road you could have switched to regular coker
mode and for flat road you could cruise at a low cadence. I was really
hoping that someone was going to ride a geared 36" in this, so I could
see how something like that would perform for a long tour with a
variety of road conditions and elevations.

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how much will the kh geared hub be ?

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maxisback

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maxisback said:

how much will the kh geared hub be ?

I dont think that KH has established a price yet, but from reading
another thread it seemed like a ballpark figure for the entire unicycle
would be $1600, and the hub ballpark figure would be $1200-$1300. I
could be wrong though, I am just getting my info from what I read in
the couple threads that came up when I was searching yesterday.

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I built a 36" uni 2 years ago, it was too fragile for the LUT. So I
ordered a 29" Schlumpf in spring 2005. Florian did not deliver it till
Dec. 2005 because there were problems with the first generation hub. I
was concerned, that I would not have a uni for the LUT so I ordered
another hub from Florian in Oct. 2006. I upgraded my 36" with this
geared hub. I used 140 mm cranks and the uni was very hard to ride for
me in 1:1.55 mode. As the 29" guni came I was happy to use it for the
LUT.

I changed the cranks on the 36" after the LUT to 170 mm and I am very
happy with them. I rode more than 500 km since Feb. 2006 and I love the
geared 36". The hub on the 36" ( the only Coker parts are the tube and
the spokes) is in between the 1st and the 2nd generation. It still has
6 pins but the pins are conic like in the new hubs, so the gears cannot
slip.

A little comparison between the 29" and the 36" geared unis:
The 29" is
* easier to mount
* easier to shift (because of the newer hub)
* very easy to ride and idle in 1:1 mode
* fast enough for me in 1:1.55 mode
* easier to pack and transport in plains and trains

The 36" is
* more fun (I love the "Coker feeling"😉
* more stable because of the flywheel effect
* It rides over bumps more steadily
* easy to ride in 1:1 mode
* a manageable challenge in 1:1.55 mode

So I think, the difference is not too big, but the 29" is more easy and
reasonable and the 36" is more fun. I ride the 36" more than the 29". I
use it mostly in the flat and in 1:1.55 mode most of the time. I shift
down for up- and downhill, strong headwind, crowds and dogs, traffic
and bumpy roads. I thought about selling one of my gunies, but I cannot
decide which.

Hans

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How fast can you go with the Coker set to 1:1.55 ?
What sort of average speed do you get on long flat rides?
That sounds like the ultimate high speed long distance unicycle.

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