Qui si parla Campagnolo-www.vecchios.com wrote:
On Aug 7, 8:21 pm, "Tom Kunich" cyclintom@yahoo. com wrote:
"jim beam" wrote in message

t...

wrote:
Campagnolo had a prototype of it's electronic shifting system. The
problem however is that they have chosen to use the solenoid as the
primary driving mechanism. The same goes for Shimano as well. Mavic's
Mektronic used the d?railleur pulley to drive a worm gear thus saving
weight.
interesting.
The Mavic system was handicapped by the mechanism. All it takes is a strong
jolt and the clutches lift and the bike shifts somewhere on it's own.

The other methods probably use stepping motors with leadscrews to give very
precise and reliable position sensitive shifting. The problem is that they
use quite a bit of power.

I'm still trying to figure out what the advantages are to electric shifting.
Anyone got any suggestions? True that if you have electronic shifting you
can shift even if you're a weak kneed shifty eyed moron - say like Kyle,
Howard, Carmine or datakoll. But for anyone with the coordination of a skunk
sprayed squirrel Ergo or STI has no drawbacks aside from those huge lever
bases.

Like I asked a shimano clone at Interbike, pointing to a particularly
goofy FD setup, "what's that for?", I ask.."For selling" he answers.

Like disc brakes on road bikes, tubeless, threadless, compact frames,
oversized handlebars, etc....many will say what an improvement these
things all are but mostly they are for 'selling'.


jeepers, who ****ed in your cornflakes this morning? get off your high
horse peter. the bike you rode in on this morning, the steel merckx
that you love so much, /that/ is the product of over 100 years of
"selling". it's darwinian. what works sticks around. what doesn't,
gets dropped. watch, learn and enjoy.