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Sorry if it has appeared here before, but this looks quite promising.
It's claimed to be smooth and efficient.
If only......
Posted : 10/12/2011 9:03 am
Looks like a simple clutch mechanism?
Posted : 10/12/2011 10:17 am
its clever but he says 1:1 is a high gear so it'd need to be changed for bikes and I don't think it freewheeling under full load would go down to well on big hills
Posted : 10/12/2011 11:12 am