No more rusty chains.....but yeah does it have any real advantage over a regular bike
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Nakey (Site Administrator)
turns our you're 3.6 times more likely to be called a faggot while riding one of these.
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daftcunt (Old Spike)
2014? Looks like this did not catch on.
I like the disabled (trike) version.
What I don't understand on the normal bike is why would you want to transfer rotating motion into pumping action? It would be more efficient and practical to instal two pumping pedals, this way on racebikes the pedals could be mounted way back for better pedalling.
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Daniel_Melinda (Short Spike)
It probably didn’t take off because when you bend fibers (natural or synthetic) over and over again, they tend to fray and break. I couldn’t imagine that the “string” would last very long. There was a really small pulley on it and the tighter you bend a fiber, the quicker it will fail. Think of it as a coat hanger, if you bend it on a small point over and over it will break faster than bending it over your knee again and again. But either way it’s going to break…
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sato (Old Spike)
can see a lot of upsides to this. the weight saving is small but on racers it'd be significant. the gear shifting would be much smoother as you're not moving the string in a direction lateral to the force applied (ie not in and out along the axels), and you'r also only moving it at one end not both. the rear axel in particular can be a lot shorter because you no longer need the mass of cogs, and not having the dereiller to catch on anything when offroading would be nice too. actually onroading too, hit mine on a kerb once i seem to remember.
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Sgt_Ric (Short Spike)
But will it catch on?
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Pontif II (Short Spike)
One little puddle and you lose friction and start going backwards.
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daftcunt (Old Spike)
No, you won't! This is not friction based. The ends of the wires are fixed in position.
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NoToucH (Short Spike)
I rather have a rusty chain than a string that any dipshit can easily cut through.
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bradlox (Long Spike)
Or melt with a lighter
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Fullauto223cal (Old Spike)
Perhaps instead of a fiber string, they should have used steel braided cable.
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jman (Short Spike)
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exploder (Short Spike)
Any weight savings are easily defeated by one major energy suck: the rewind springs. Every pedal push you have to wind those springs up, and then they suck the string back for the next push. All that energy turns to heat, not thrust. It might not seem large, but add it all up, and I bet it would be far worse than the normal friction and weight of any good chain drive.
Furthermore, if you look up modern multi-speed gear hubs, you can find really amazing, many-gears hubs that easily blow away this string crap. These gear hubs also open up using a very smooth and quiet tooth-belt drive, since you don't need all the crap for multi-sprocket chain gearing.
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backdraft (Dixie Normous: Image specialist)
Good to have you back exploder. We thought you were dead.
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daftcunt (Old Spike)
LOL, is it you exploder or someone trolling us? bannik had this picture once if I remember correctly.
Comments
(Long Spike)
why
(Dixie Normous: Image specialist)
No more rusty chains.....but yeah does it have any real advantage over a regular bike
(Site Administrator)
turns our you're 3.6 times more likely to be called a faggot while riding one of these.
(Old Spike)
2014? Looks like this did not catch on.
I like the disabled (trike) version.
What I don't understand on the normal bike is why would you want to transfer rotating motion into pumping action? It would be more efficient and practical to instal two pumping pedals, this way on racebikes the pedals could be mounted way back for better pedalling.
(Short Spike)
It probably didn’t take off because when you bend fibers (natural or synthetic) over and over again, they tend to fray and break. I couldn’t imagine that the “string” would last very long. There was a really small pulley on it and the tighter you bend a fiber, the quicker it will fail. Think of it as a coat hanger, if you bend it on a small point over and over it will break faster than bending it over your knee again and again. But either way it’s going to break…
(Old Spike)
can see a lot of upsides to this. the weight saving is small but on racers it'd be significant. the gear shifting would be much smoother as you're not moving the string in a direction lateral to the force applied (ie not in and out along the axels), and you'r also only moving it at one end not both. the rear axel in particular can be a lot shorter because you no longer need the mass of cogs, and not having the dereiller to catch on anything when offroading would be nice too. actually onroading too, hit mine on a kerb once i seem to remember.
(Short Spike)
But will it catch on?
(Short Spike)
One little puddle and you lose friction and start going backwards.
(Old Spike)
No, you won't! This is not friction based. The ends of the wires are fixed in position.
(Short Spike)
I rather have a rusty chain than a string that any dipshit can easily cut through.
(Long Spike)
(Old Spike)
Perhaps instead of a fiber string, they should have used steel braided cable.
(Short Spike)
(Short Spike)
Any weight savings are easily defeated by one major energy suck: the rewind springs. Every pedal push you have to wind those springs up, and then they suck the string back for the next push. All that energy turns to heat, not thrust. It might not seem large, but add it all up, and I bet it would be far worse than the normal friction and weight of any good chain drive.
Furthermore, if you look up modern multi-speed gear hubs, you can find really amazing, many-gears hubs that easily blow away this string crap. These gear hubs also open up using a very smooth and quiet tooth-belt drive, since you don't need all the crap for multi-sprocket chain gearing.
(Dixie Normous: Image specialist)
Good to have you back exploder. We thought you were dead.
(Old Spike)
LOL, is it you exploder or someone trolling us? bannik had this picture once if I remember correctly.