Stringbike

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Zynster
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Stringbike

Postby Zynster » Fri Sep 24, 2010 8:08 am

Here is something a bit different.

http://www.stringbike.com/

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Boognoss
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Re: Stringbike

Postby Boognoss » Fri Sep 24, 2010 10:02 am

Interesting. I'll stick with a chain though :)
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scotto
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Re: Stringbike

Postby scotto » Fri Sep 24, 2010 10:29 am

rreminds me The Goodies string promotion.

clearly i wasted money on that old school metat based chain drive system
[youtube]http://www.youtube.com/watch?v=7rlOSjpIbFs&feature=related[/youtube]

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soc
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Re: Stringbike

Postby soc » Fri Sep 24, 2010 10:33 am

Hold on a sec, isn't this a family friendly forum? :shock: :shock:

Last but not at least the STRINGBIKE® is a beautiful piece of art, and the reciprocating movements of the swinging members with the never ceasing winding of the ropes provide a nice visual impression.

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il padrone
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Re: Stringbike

Postby il padrone » Fri Sep 24, 2010 10:43 am

I think I may have to add this one as a sixth to the Five Horsemen of the Cycling Apocalypse :shock:

http://www.angelfire.com/art3/levercycle/

Frazer Robike
Image

Rowbike (apparently invented by the same guy to develop rollerblades)
Image


The invention dates back to 1905 at least

Image

There were such drive systems in the 1890s as well. The Farrens have an 1882 Dublin trike with lever drive and a Lever Chainless Bicycle from 1895 in their collection.


Apparently it's even been on the New Inventors - gotta be a recycled invention then :roll:



The (new) Six Horsemen of the Cycling Apocalypse

- shaft drive
- automatic gears
- airless tyres
- funky saddles
- elyptical chainrings
with added
- lever drive

:P :lol:
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rkelsen
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Re: Stringbike

Postby rkelsen » Fri Sep 24, 2010 11:42 am

il padrone wrote:The (new) Six Horsemen of the Cycling Apocalypse

Uhhh... this isn't a lever drive system. Watch the videos on the website.

The rider's feet move in circles (as if riding a bike with regular cranks), unlike the lever systems you've mentioned. For all intents and purposes, it looks like the rider wouldn't even notice the difference between this and a normal bike.

It looks cumbersome and complicated, but I'd give it a go. If a string were to snap, could it cut your leg?

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il padrone
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Re: Stringbike

Postby il padrone » Fri Sep 24, 2010 11:49 am

For sure, the pedal action is not lever-style, it's rotary. However the drive is just the same as all the other lever-drives, just using string not chain. This type of drive has a number of disadvantages over the good old rotary chain.

I remain very sceptical :|
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rkelsen
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Re: Stringbike

Postby rkelsen » Fri Sep 24, 2010 11:59 am

il padrone wrote:However the drive is just the same as all the other lever-drives, just using string not chain.

OK, but this design seems more elegant in its execution. It certainly is far less awkward to use...
il padrone wrote:I remain very sceptical :|

I'm not disagreeing with you. The thing that kills it for me is that you can't use it on a standard frame.

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Re: Stringbike

Postby Uncle Just » Fri Sep 24, 2010 6:02 pm

I'm with you Pete. Ridiculous idea that overcomplicates the drivetrain for no better result.

Notice in the You tube video they show the front quick release lever rotating as well! :roll:

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