on 2/16/09 7:37 PM, Doug Peterson at [email protected] wrote:

> After the centerpull brake, derailer & quick release, most everything else
> has been refinement, as opposed to truly new technology.  So STI & Ergo move
> the shifting mechanism to a more convenient location, and modern drive
> trains offer many times the number of gears & range of gearing, and modern
> manufacturing methods allow more precise tolerances.  But the technology
> itself is more like 60 years old.  I would submit that e-shifting is a
> refinement, in that it is a different method of performing the same task,
> e.g., moving the chain between sprockets.

And recall that Mavic was the first with the electronic shifting - Zap and
Mektronic. 

Shimano also experimented with pneumatic (air) shifting as well.

- J

-- 
Jim Edgar
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