Alt Bike Culture - 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.....


Kris

don't know about unicycles, but if you've ever seen one of those kids "green machine" trikes, the work that way.

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?

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.

You could do this...

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

Make the back two wheels straight if your wanting a "BigWheel" type ride.

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.

like this....

http://www.highrollerusa.com/hrwp/wp-content/uploads/2010/11/frontleft.jpg

someone obviously makes them, i just dont know where to find one...

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.

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?

http://bigwheelrally.com/store/parts.htm


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

"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".

http://www.bikerassine.com/20-mountain-bike-wheel-for-hillkicker-pro/

(I know, old thread)

http://www.bikerassine.com/20-mountain-bike-wheel-for-hillkicker-pro/

20" pedal wheel

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.

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.