Re: Schlumpf gear-change unicycle hub prototype revealed



W

willfcc

Guest
Schlumpf has posted specs on their website:

- 2 gear ratios: direct drive1:1, overdrive 1:1.5
- Shifting: direct shifting via push buttons on both ends of the
spindle. No cables, no rods.
- Housing: corrosion resistant, completely encased and protected against
dust and spray water.
- Hub: for 36-hole rims
- Axle length: 140mm
- Crankarms with standard square end
- Crankarms available: 104, 125, 127, 152, 165, 170, 172.5 180mm
- Distance from outer side of ball bearing to outer side of ball
bearing: 102mm
- Designed for bearings with width 40mm, diameter 12mm


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Will

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willfcc wrote:
> *
> - Distance from outer side of ball bearing to outer side of ball
> bearing: 102mm
> *

How does that compare the to the bearing to bearing width of standard
hubs like the Suzue or the Uni.com Chromoly hub? Is it wider, narrower,
the same?


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john_childs wrote:
> *
> How does that compare the to the bearing to bearing width of standard
> hubs like the Suzue or the Uni.com Chromoly hub? Is it wider,
> narrower, the same? *
Suzue measures 104mm, so essentially the same.

Scott


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S_Wallis - I kneed to ride.

"I am always doing that which I can not do,
in order that I may learn how to do it."
Pablo Picasso
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S_Wallis wrote:
> *Suzue measures 104mm, so essentially the same.
>
> Scott *

Bummer. I was hoping that it would be wider than the Suzue. There is
no need to try to squeeze a hub like that into a narrow frame. Might as
well make it a little wider. Oh well. I'll have to see what the flange
to flange width is to get a batter comparison. The bearing to bearing
width doesn't tell the whole story.


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joemarshall wrote:
> *Wow that looks cool.
>
> It'll not be cheap though, the standard bicycle version is over £200,
> ($412 + postage + taxes for you guys in the US).
>
> Joe *


That's a price I'd happily pay for an epicyclic/geared hub. They would
be perfect for unitouring and (if robust enough), for MUniracing. Can't
wait for the production versions of these things.

Ken


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o-kO


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GizmoDuck wrote:
> *
>
> That's a price I'd happily pay for an epicyclic/geared hub. They
> would be perfect for unitouring and (if robust enough), for
> MUniracing. Can't wait for the production versions of these things.
>
> Ken *


I'm thinking similar about the muni riding. On a 26/29 wheel it'd mean
you could easily go 20 miles on road, then do some off road and then
ride back. Currently when I do rides like that, it's usually on a 29er
with short cranks, which is a bit of a compromise for both the road
riding and the muni riding, or the coker which is a lot of a compromise
for the muni and limits what you can ride.

Joe


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