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Old 10-10-05, 08:24 AM
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cerewa
put our Heads Together
 
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Join Date: Jun 2003
Location: southeast pennsylvania
Posts: 3,155

Bikes: a mountain bike with a cargo box on the back and aero bars on the front. an old well-worn dahon folding bike

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Supposedly Audi has greatly improved the efficiency of the automobile CVT by putting some kind of metal chain inside the rubber transmission belt. I have no idea whether a smaller, lighter, version of that will ever be viable for bicycles but it sounds like it might.

Personally, I think that conventional derailleur systems could be improved a lot. One of the ways a person might do this is to eliminate some of the duplication of gear ratios (large-chainring, large-cog giving same ratio as small-chainring+small-cog). Another improvement for those of us that commute in bad weather would be to cover the gears up so they don't get snow/rain/road grime on them.
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