The obvious first step is to stop trying to communicate the index detenting of the overall system via a thin flexible steel cable from the far end of the bike and put that function in its logical place near the cogs. I've never read The Dancing Chain but the idea is so intuitive, I'd expect it's been done before.
Kurt Sperry Bellingham WA USA
On 10/29/07, Donald Gillies <email@example.com> wrote:
> If you consider imho that the friction derailleur wasn't perfected
> until about 1975 or 1976 (I vote with Frank Berto for the Suntour
> Cyclone, but others may say it's Suntour Superbe), the indexed
> derailleur is still in its infancy and we won't see a really optimized
> indexed shifting derailleur until 50 more years have passed ... :-) :-)