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Old 02-21-11, 08:22 PM   #1
kriskelso24
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freewheel hub with crank and pedals? do they make one?

in other words... a unicycle but it has a free wheel..... do they make one?

i dont want the whole unicycle just the wheel and hub you can attach a crank and pedals to.....


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Old 02-21-11, 08:29 PM   #2
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don't know about unicycles, but if you've ever seen one of those kids "green machine" trikes, the work that way.
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Old 02-21-11, 08:47 PM   #3
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don't know about unicycles, but if you've ever seen one of those kids "green machine" trikes, the work that way.
thats exactly what im building a big wheel, but i need a free wheel for the front, do u know where i can get one?
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Old 02-21-11, 11:30 PM   #4
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Schlumph makes something like this, I think. I think it's only 2 speeds.

I think what you really need is a Shimano Integer front freewheel crankset, they came on some old Bike Boom Schwinns. They got kind of a bad rap because they were paired with the Positron "indexed" derailleur but it was actually kind of a neat concept. I keep wanting to build a bike that can use one but they take a bigger cup like you use on a Ashtabula bottom bracket.

You might have to end up having to fab your own custom hub.
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Old 02-21-11, 11:45 PM   #5
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You could do this...

http://www.youtube.com/watch?v=pet3yB9B7ZA

Make the back two wheels straight if your wanting a "BigWheel" type ride.
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Old 02-22-11, 09:45 PM   #6
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Originally Posted by kriskelso24 View Post
in other words... a unicycle but it has a free wheel..... do they make one?

I think so. I got a Mongoose kids trike (pics in the costume thread)- straightaxle in back, and rear wheel steering. The front wheel drive is strange- the pedals turn and only grab the wheel sometimes. It might be one of those old 2 speed kickback hubs; so it would coast if it is. The disk brake is on the back axle.
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Old 02-22-11, 09:46 PM   #7
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like this....

http://www.highrollerusa.com/hrwp/wp.../frontleft.jpg

someone obviously makes them, i just dont know where to find one...
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Old 02-25-11, 10:53 AM   #8
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They are very hard to find. Coker used to make a 36" pennyfarthing (highwheeler) with a freewheeling front hub. They used a sort of "one-way" bearing to freewheel, not an actual ratcheting mechanism, and therefore they don't last very long. I've never seen anybody offer one for commercial sale, but if you do a search for "freewheel unicycle" you'll find a few threads on it. If you find one for sale, let me know, I'm wanting to build my own pennyfarthing with one.
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Old 03-07-11, 08:37 PM   #9
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Originally Posted by kriskelso24 View Post
thats exactly what im building a big wheel, but i need a free wheel for the front, do u know where i can get one?
sorry, i just post at work now so i'm just seeing this again. but no, the only way i know of is to find a green machine at a thrift store, flea market or something. maybe craigslist?
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Old 03-20-11, 06:31 AM   #10
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http://bigwheelrally.com/store/parts.htm


http://m.flickr.com/#/photos/47642593@N00/99880919/

Last edited by NightShift; 03-20-11 at 07:45 AM. Reason: added second link
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Old 03-27-11, 04:29 PM   #11
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"Schlumph makes something like this, I think. I think it's only 2 speeds." They make a geared unicycle hub, but there's no freewheel in it.

The only one I've heard of is the one mentioned above by Coker, this was on "The Wheelman".
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Old 10-19-12, 10:32 AM   #12
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http://www.bikerassine.com/20-mounta...illkicker-pro/

(I know, old thread)
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Old 11-26-12, 08:43 PM   #13
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http://www.bikerassine.com/20-mounta...illkicker-pro/

20" pedal wheel
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Old 11-27-12, 03:18 AM   #14
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In the Past a Shimano attempt, Positron .. front freewheel crankset BB combo.

You don't freewheel on a Unicycle .. it is the original fixed gear.
Quote:
Schlumph makes something like this, I think. I think it's only 2 speeds.
there is a planetary gear ratio change in those unicycle hubs
direct and overdrive, but no freewheel.

site says a 24" wheel, in the high range, acts like a 36" wheel, for cruising speeds.

Last edited by fietsbob; 11-27-12 at 03:26 AM.
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