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Folding Bikes Discuss the unique features and issues of folding bikes. Also a great place to learn what folding bike will work best for your needs.

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Old 10-06-05, 07:31 PM   #1
andy_is_me
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chainless folder


wacky.
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Old 10-07-05, 06:18 AM   #2
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Here's another

It's belt-driven. I test road one at the NYC bike show. I had never been on a folder / 20" bike at the time and it was reasonably comfortable. Several months now of Dahon ownership have passed and I think I'd really dig it now if I tried it again. I also tried a shaft-driven bike at the show, but it was full sized. It looks like the one in the OP is a shafter.
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Old 10-07-05, 07:27 AM   #3
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I was under the impression that this bike was not belt driven (like the Strida, as an example). I seems that it has a direct transmission using a spinning axel, directly connected to the center of the rear hub (or really close to it).

Looks funny though, but must be a convenience for your greasy hands.

Rafael
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Old 11-09-05, 10:05 AM   #4
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It looks like a Sussex chainless shaftdrive conversion. I'm looking to convert my Dahon Speed P8 folder with it. If you're interested in chainless shaftdrives, see FAQ section at http://www.dynamicbicycles.com. They don't mention anything about how difficult it is to remove the rear wheel.

Last edited by dynamho; 11-09-05 at 01:18 PM.
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Old 11-09-05, 10:14 AM   #5
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it may be wacky, but it will also be the succedaneum of the traditional products.
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Old 11-09-05, 07:58 PM   #6
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so far all shaft driven bicycles had a 20 % or more powerloss versus chain.....
I think if you use ceramic coated gears and unobtainium parts, one could make it go down to 15 % but thats it....

On a big BMW motorcycle or high power quads shaft drive can be of some advantage, although I would also prefer a chain......

Thor
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Old 11-09-05, 10:26 PM   #7
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It sold for $3.80. I wonder what shipping would be.....

Sory, I see shipping is $198.00.
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Old 11-14-05, 01:37 AM   #8
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Quote:
Originally Posted by brakemeister
so far all shaft driven bicycles had a 20 % or more powerloss versus chain.....
I think if you use ceramic coated gears and unobtainium parts, one could make it go down to 15 % but thats it....

On a big BMW motorcycle or high power quads shaft drive can be of some advantage, although I would also prefer a chain......

Thor
brakemeister, are you sure about the power loss? I couldn't find any figures that verify that, although of course the sellers of these shaft drives claim around 95-97% efficiency. I've also read somewhere (don't remember where) that modern shaft drives are much more efficient that past ones and that the power transfer is excellent.
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Old 11-14-05, 09:18 AM   #9
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Unfortunately I am pretty sure ...
of course the shaft people like you to believe its much less.

Thorsten
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