Electronic shifting system

On Aug 8, 5:53 am, "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

et...

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'.

One potential advantage of tubeless tires is that they supposedly
improve the handling. Some people have said that they handle as well
as tubulars. You are correct that there is a lot of gimmick gee gah
technology in the bike industry today. I used to work in a shop and I
am amazed they are able to sell some of this stuff. Carbon fiber bars
make very little sense when the older 3TTT Superlegerra bars weigh 10
grams more and are far stronger. I have a set and have gone down 5 or
6 hard. The bars did not even bend. I would hate to think how many
times a set of composite bars would survive after just paying $300.
It's also ridiculous that consumers are paying $3000 with only a 3 or
5 year warranty. Disc brakes do make a lot sense because they do
improve the stopping power.

Tom Kunich wrote:
I'm still trying to figure out what the advantages are to electric shifting.
Anyone got any suggestions?

In theory you could put your shift levers/buttons anywhere you want on
the bike, or have multiple sets of shifters, since the shifters aren't
tied to mechanical cables. A TT bike, for example, could have shifters
on both the aero bars and the bullhorns. FWIW.

"jim beam" wrote in message
t...
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.

Someone that believes that an electronic RD can be "self adjusting" ought to
just read the postings and not write them.

Tom Kunich wrote:
"jim beam" wrote in message
t...
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.

Someone that believes that an electronic RD can be "self adjusting"
ought to just read the postings and not write them.

eh? maybe you should re-read?

On Aug 8, 4:34 pm, Chris Solar wrote:
Tom Kunich wrote:
I'm still trying to figure out what the advantages are to electric shifting.
Anyone got any suggestions?

In theory you could put your shift levers/buttons anywhere you want on
the bike, or have multiple sets of shifters, since the shifters aren't
tied to mechanical cables. A TT bike, for example, could have shifters
on both the aero bars and the bullhorns. FWIW.

The true advance of cordless electronic shifting will
be to relocate the shifters on a TT bike to their proper
place: the directeur sportif's steering wheel.
Venga, venga!

Sincerely,
J. Bruyneel

In article ,
jim beam wrote:

Tom Kunich wrote:

Someone that believes that an electronic RD can be "self adjusting"
ought to just read the postings and not write them.

eh? maybe you should re-read?

You're not holding your breath waiting for that, are you? By the way, the original
Mavic electronic rear deralleur had problems, but it wasn't the mechanism. The
troubles were mostly centered around the electronics and the wiring in particular.
They frequently stopped working due to miniscule amounts of moisture. They did stay
in the gear they were in when it quit or you could stop and manually move it over to
an appropriate gear. There are no 'clutches" in 'em, contrary to what TK stated.

--
tanx,
Howard

Never take a tenant with a monkey.

remove YOUR SHOES to reply, ok?

Howard Kveck wrote:
In article ,
jim beam wrote:

Tom Kunich wrote:

Someone that believes that an electronic RD can be "self adjusting"
ought to just read the postings and not write them.

eh? maybe you should re-read?

You're not holding your breath waiting for that, are you? By the way, the original
Mavic electronic rear deralleur had problems, but it wasn't the mechanism. The
troubles were mostly centered around the electronics and the wiring in particular.
They frequently stopped working due to miniscule amounts of moisture. They did stay
in the gear they were in when it quit or you could stop and manually move it over to
an appropriate gear. There are no 'clutches" in 'em, contrary to what TK stated.


sounds like a very interesting system nevertheless. any online
resources for this?

Tom Kunich wrote:
Someone that believes that an electronic RD can be "self adjusting"
ought to just read the postings and not write them.

jim beam wrote:
eh? maybe you should re-read?

Howard Kveck wrote:
You're not holding your breath waiting for that, are you? By the
way, the original Mavic electronic rear deralleur had problems, but it
wasn't the mechanism. The troubles were mostly centered around the
electronics and the wiring in particular. They frequently stopped
working due to miniscule amounts of moisture. They did stay in the
gear they were in when it quit or you could stop and manually move it
over to an appropriate gear. There are no 'clutches" in 'em, contrary
to what TK stated.

jim beam wrote:
sounds like a very interesting system nevertheless. any online
resources for this?

You're kidding, right?
Mavic Mektronic systems were everywhere . . . for a whole season.
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971

In article ,
jim beam wrote:

Howard Kveck wrote:
In article ,
jim beam wrote:

Tom Kunich wrote:

Someone that believes that an electronic RD can be "self adjusting"
ought to just read the postings and not write them.

eh? maybe you should re-read?

You're not holding your breath waiting for that, are you? By the way,
the original Mavic electronic rear deralleur had problems, but it wasn't the
mechanism. The troubles were mostly centered around the electronics and the
wiring in particular. They frequently stopped working due to miniscule amounts
of moisture. They did stay in the gear they were in when it quit or you could
stop and manually move it over to an appropriate gear. There are no 'clutches"
in 'em, contrary to what TK stated.


sounds like a very interesting system nevertheless. any online
resources for this?

I don't know of any, sorry.

--
tanx,
Howard

Never take a tenant with a monkey.

remove YOUR SHOES to reply, ok?

A Muzi wrote:
Tom Kunich wrote:
Someone that believes that an electronic RD can be "self adjusting"
ought to just read the postings and not write them.

jim beam wrote:
eh? maybe you should re-read?

Howard Kveck wrote:
You're not holding your breath waiting for that, are you? By the
way, the original Mavic electronic rear deralleur had problems, but
it wasn't the mechanism. The troubles were mostly centered around the
electronics and the wiring in particular. They frequently stopped
working due to miniscule amounts of moisture. They did stay in the
gear they were in when it quit or you could stop and manually move it
over to an appropriate gear. There are no 'clutches" in 'em, contrary
to what TK stated.

jim beam wrote:
sounds like a very interesting system nevertheless. any online
resources for this?

You're kidding, right?
Mavic Mektronic systems were everywhere . . . for a whole season.

i saw them on special on cambriabike.com once. but never seen one in
the flesh and certainly no tech info.

but don't you think this odd? i mean, mavic's just a marketing company,
right? pre-built wheels are meritless and sales are just a function of
marketing, so mavic's electronic shifting should have responded to the
same treatment...