Twin screw

By hardsole5280 on 12/03/2008. Bike tags: Fixed gear | Dual drive train; hardsole

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Notes:

sold

People who friended this bike o_O, iamsomeguy, immersionroom, Timo, CONDENADO, trans4mer, yeawelluh, stinky pete, van

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Now you’re doubly screwed!

Submitted by stinky pete on 03/25/2009.

Now there is something I haven’t seen before OR thought of... From a creative novelty point of view, it’s genius!!

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quote

Submitted by martian cougar on 12/05/2008.

"This is the only pic I have seen of this bike, thought I would throw up"

-me

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Huh? I built this bike. I

Submitted by hardsole5280 on 12/05/2008.

Huh? I built this bike. I built all the bikes I have posted on here.

If your gonna talk shit, you should be clevar.

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You mean Clever?

Submitted by jugglernaut on 12/16/2008.

You mean Clever?

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nice

Submitted by coldhandshake on 12/05/2008.

What if you switched the gears on one side. So you end up with a large/small gear in back and a large/small gear in the front? The physics would not change I don't think, but I'm no physicist.

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One idea that I am working

Submitted by hardsole5280 on 12/05/2008.

One idea that I am working on, is to find another gear combo that is duplicate in chain inches. That would alow me to run diffrent size chainwheel/cog on one side of the bike- looking very odd.

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its easy to do differential geared dual drive

Submitted by Legislator on 10/19/2009.

60:20, 57:19, 54:18, 51:17, 48:16, 45:15, 42:14, 39:13 and 36:12 all produce an equal 3:1 ratio, which is a manageable enough gear. If its 2 freewheels making it effectively fixed then you need a bmx flip flop hub with both sizes of threading and you limit your options of gearing choices. If its fixed/free you can run the smaller setup on the fixed side and the big setup on the free side, but the free side would have to be the left. The coolest would be to run it fixed/fixed, 36:12 on the one and 60:20 on the other.

Sadly I have all this crap lying around my house, if I get bored and build it I'll post pictures.

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good luck

Submitted by Aaron C on 12/16/2008.

they would have to be exactly the same to make it work and even if you could find something close enough to work i doubt youd be able to figure out the tensions...

unless it was fix on the normal non-drive side and a free wheel with a single speed chain tensioner on the normal drive side...
maybe.

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Yeah, I've always thought

Submitted by RideEveryday on 12/03/2008.

Yeah, I've always thought this would be cool to try. It seems to me like it wouldn't be too different. Looks weird, seeing as we are all used to seing a single side drive.

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...

Submitted by aliderkrasse on 12/16/2008.

Check out "Broakland" they do this dual drive train thing a lot because they are into hard skids and all that. They say it prevents stripped cogs and you don't need lockrings anymore.

I always thought it looks kinda cool...

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ive thought about this

Submitted by iamsomeguy on 12/03/2008.

ive thought about this before , how well does itride / whats the ride like
/

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They toyed around with this

Submitted by hardsole5280 on 12/03/2008.

They toyed around with this concept in the 80's. The benifits do not out weight the... extra weight, but I do feel like it is more rigid under a load, and you feel like your on a 4x4. I am almost done with my dually drive MTB.

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Twin screw