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Old 03-10-09, 11:25 PM   #1
Butterthebean
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What is the point of this?

Or is the point just the fact that it could be done?



http://picasaweb.google.com/nahbshow...78275861599410
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Old 03-10-09, 11:35 PM   #2
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I'm not sure but I think I just threw up in my mouth a little.
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Originally Posted by bragi "However, it's never a good idea to overgeneralize."
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Old 03-10-09, 11:39 PM   #3
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add extra weight?

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Old 03-10-09, 11:44 PM   #4
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That way no one can say "you took the picture on the wrong side"..


Oh...and it would have been much more impressive if it have Record 11 speed on BOTH sides too.
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Old 03-10-09, 11:53 PM   #5
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Why not? Didn't Sheldon have a 40 something gear bike? Bikes are not sacred objects that can never be touched. Do what you want with them. Make them your own, make them lighter, bigger, heavier, more useful, less useful, make them workhorses, or pieces of art. Who cares?
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Old 03-11-09, 12:47 AM   #6
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Funny - it reminds of a concept record attempt bike back in the 80's (possibly a Pinarello) that had the same setup. It was intended to use both sides to get the maximum power during the initial explosive start; after that, the chain was designed to fall off to relieve the bike of weight (I'm not making this stuff up, honest!). As far as I know it never made it past the bike show concept stage.

Last edited by retroroadie; 03-11-09 at 12:47 AM. Reason: mispelling
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Old 03-11-09, 01:17 AM   #7
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it looks like it would distribute stress/wear & tear more evenly across the frame, Bottombracket, and the rear hub. Hence your chains, wheels, and bike would last MUCH longer. At least in theory. Plus the power you put down would all go straight towards propelling you forward, no loss.

I thought about doing this idea about 2 months ago and decided that it would make the bike OVERBUILT. You could do it for cheap with a flipflop hub with spacers, a cheap shimano square tapered axle, and shimano crank on the right side and a suntour crank on the left.

well you would need to reverse thread the flipflop hub. or you can use a hub that is designed to use a disk brake and a freewheel, then put a cog on that instead of a brake, and a hub on the freewheel side.

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Old 03-11-09, 03:52 AM   #8
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Maybe it is a special design to catch your pantslegs on either side !

Really, I would agree with ' Eat " above , that it may be for balancing torque, equally, to the entire bike,,, but I don't see a need for it.
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Old 03-11-09, 04:08 AM   #9
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It was made so they could take a picture of it and post it on the interwebs.


You don't think it's actually meant to be ridden...do you?
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Old 03-11-09, 04:14 AM   #10
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Plus the power you put down would all go straight towards propelling you forward, no loss.
I don't see how that's anymore efficient than a single chainring/cog/chain setup. In fact, seems like it'd be more inefficient than anything else.
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Old 03-11-09, 04:27 AM   #11
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I thought it was so you could stop worrying about dish
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Old 03-11-09, 05:34 AM   #12
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Maybe it so you can switch between "fixed" and "coaster" without flip-flopping the hub?
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Old 03-11-09, 07:08 AM   #13
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Quote:
Originally Posted by retroroadie View Post
Funny - it reminds of a concept record attempt bike back in the 80's (possibly a Pinarello) that had the same setup. It was intended to use both sides to get the maximum power during the initial explosive start; after that, the chain was designed to fall off to relieve the bike of weight (I'm not making this stuff up, honest!). As far as I know it never made it past the bike show concept stage.
No, IIRC it actually worked, but UCI wouldn't allow it in competition so it never went anywhere.
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Old 03-11-09, 07:43 AM   #14
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What were they smokin' that day?
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Old 03-11-09, 07:46 AM   #15
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I assume the left side (nds side for everything else) crank is the captain's crank from a tandem to get the pedal threading correct.
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Old 03-11-09, 10:51 AM   #16
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after that, the chain was designed to fall off to relieve the bike of weight (I'm not making this stuff up, honest!).
I've been using this same technique for quite a few years, but unintentionally.


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Old 03-11-09, 04:12 PM   #17
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Looks nice. It should go into the alternative subforum. They come up with useful stuff all the time.

'Advanced double safety chain system' saves your teeth on a bad day
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Old 03-11-09, 05:11 PM   #18
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Obviously because it saves weight since there's no need to use lockrings.
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Old 03-11-09, 05:38 PM   #19
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Symmetry...........
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Old 03-11-09, 06:15 PM   #20
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i am surpeised no one has mentioned the most obvious (IMHO) answer - redundancy should one chainring/cog or chain fail you could keep going without stopping.
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Old 03-11-09, 06:27 PM   #21
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i am surpeised no one has mentioned the most obvious (IMHO) answer - redundancy should one chainring/cog or chain fail you could keep going without stopping.
Yeah except one chainring/cog failing will still bring you to a halt, regardless.
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Old 03-11-09, 06:51 PM   #22
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[QUOTE=EatMyA**;8508329] and shimano crank on the right side and a suntour crank on the left.
[QUOTE]

Huh?
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Old 03-11-09, 07:40 PM   #23
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Quote:
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Maybe it so you can switch between "fixed" and "coaster" without flip-flopping the hub?
So one side is fixed & the other coaster?

And the two pedals rotate independently?
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Old 03-11-09, 08:04 PM   #24
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Symmetry...........
and balance
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Old 03-11-09, 09:13 PM   #25
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Reminds me of the bonehead that came out with an L-shaped crankarm years ago .... wanted to add weight & flexibility ?
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