Free Wheeling Chain Wheels

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Mansfield Marauder
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Free Wheeling Chain Wheels

Postby Mansfield Marauder » 9 Jun 2010, 2:42pm

Can any one tell what happened to a new system of free wheel that Shimano brought out ages ago which put the free wheel mechanism between the cranks and the chain wheels, which meant that when you stopped pedaling the chain wheels, chain and block kept spinning so in essence you could stop pedaling but still change gear?
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Si
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Re: Free Wheeling Chain Wheels

Postby Si » 9 Jun 2010, 2:48pm

Not something that I noticed, but it sounds like a bad idea - should you have a mis-shift on a normal bike you can just stop pedalling, on that set up it sounds like you could end up with the derailleur round the sprockets!

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gaz
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Re: Free Wheeling Chain Wheels

Postby gaz » 9 Jun 2010, 2:55pm

I missed that one. Did they lauch it on April 1st?
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rootes
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Re: Free Wheeling Chain Wheels

Postby rootes » 9 Jun 2010, 3:05pm

common system on trials bikes i think, but then they don't pedal much and on have SS.

hartleymartin
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Re: Free Wheeling Chain Wheels

Postby hartleymartin » 9 Jun 2010, 6:36pm

Shimano's Front Freewheeling system. The big idea was that you could shift gears without having to pedal. It was a solution looking for a problem and quietly died with a whole pile of other cycling bad ideas.

However, the cranksets are useful for people wishing to do DIY E-Bike conversions. Just run an chain from the smallest chainring up to an electric motor mounted inside the main triangle.
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gilesjuk
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Re: Free Wheeling Chain Wheels

Postby gilesjuk » 9 Jun 2010, 7:32pm

Gone the way of many other 'great' Shimano ideas.

They should stick to doing fishing reels :)

worrywort
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Re: Free Wheeling Chain Wheels

Postby worrywort » 15 Jun 2010, 7:55am

That idea would make a great story to tell the grand children. Once upon a time i was going down Star hill and my trouser leg got caught in the chainring. The next thing I remember was a dog ran off with my foot, etc.

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[XAP]Bob
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Re: Free Wheeling Chain Wheels

Postby [XAP]Bob » 15 Jun 2010, 9:49am

Looks like an excellent plan for e conversions, but a shocking idea if it's the only freewheel in the system (and therefore a shocking idea, as it will only add complication/maintenance)
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