Re: RE: Re: Disc brake maintenance tips

On 7/8/2024 11:46 AM, Tom Kunich wrote:

On Tue Jul 2 11:51:53 2024 Zen Cycle  wrote:

On 7/2/2024 9:31 AM, AMuzi wrote:

On 7/2/2024 7:54 AM, Zen Cycle wrote:

Tom Kunich <cyclintom@yahoo.com> wrote:

>
Another little old lady comment from Krygowski. To shift downtube
shifters you have to pause pedalling.

>
Oh fer fucks sake....yeah, that's great advice....'pause pedaling
while shifting'....wow, what a fucking moron.
>

This causes the man behind you with
brifters to run into the back of you as you suddenly slow down.

>
Not if they're paying attention, and it wouldn't have been any
different if the guy behind had downtube shifters.
>

They did
have 10 speed downtube shifters. Since they were lighter than brifters
why did not some pro's with the emphasis on lighter and lighter
weight use them?

>
I don't recall any manufacturer marketing 10sp index down tube
shifters. I'll concede I may just never have noticed, but the question
about they the pro's would never use them is a really stupid strawman
argument.
>
First off, dipshit, You don't have to change cadence/power any
more/less with down tube shifters than with integrated shifters.
>
Second, It's the dynamic of being forced to sit that affects cadence
and power. With downtube shifters you pretty much are forced to sit to
shift. The reason pros don't use downtube shifters is that the ability
to respond quickly and shift while out of the saddle trumps the weight
savings. FWIW - some people who compete in hill climb events (e.g.
https://bumpshillclimb.com/) do often still use downtube shifters for
the weight savings. Many riders also use a single chain ring and a
single brake (UCI rules don't apply to those races).
>

Day after day you have not added one thing to the group except stupid
statement after stupid statement.

>
oh, you mean like " To shift downtube shifters you have to pause
pedalling." ? Oh, wait, that was you.
>

Jobst's bike was 66 cm and made from 1" rather low grade steel compared
to what is available today.

>
You have no fucking clue what Jobst rode. A rider of his caliber was
most likely riding at least something along the lines of Columbus SL,
which in the hands of a competent builder is a stiff as any steel
frame made today. There have been numerous discussions in this forum
about blind tests of steel bikes built with different grades of tubing
where the winner was more often than not the lower grade tubing.
>

It was unbelievably flexy and with old
downtube shifters and I think it a miracle that he could keep it
upright
when going around turns it would start flexing the frame and wheels (36
spoke) and he would have to counter steer it to keep it going in the
direction he wanted it to go.

>
Unless you rode it - which we know you never did - you have no fucking
clue how flexy it was or what it took to control it. FFS kunich, Day
after day you have not added one thing to the group except stupid
statement after stupid statement.
>
Tell us again how your shifting improved after you got special
campagnolo non-stretch shifter cables?
>

But you have never had experiences like that. Not that that is a
negative
- riding within your pesonal and bike selection's capabilities - but
why
do you pretend to give advice on these subjects?

>
oh, you mean like " To shift downtube shifters you have to pause
pedalling." ? Oh, wait, that was you.
>
>
>

>
Campagnolo and Shimano offered bar end Ten shifters which can be mounted
on DT shift bosses. We've installed a handful of each (vs hundreds of
Ergo/STi). An outlier format but not zero.

>
When I converted my TT bike from Ultegra 10sp to Sram 11sp I kind of
noticed that the ultegra shifters looked suspiciously like a down-tube
shifter when I took it off the bar-end mount, but I never tried it. That
said, was down-tube mounting shown in any of the literature? I only
remember them being aimed at the TT bar-end application
>
-- Add xx to reply
>

    Until the advent of electronic shifting, bar end shifters on TT bikes were the older downtube shifters modified to the newer numbers of speeds. Usually there was too much flex in the cables and you had to jolly well get up to the top gear as rapidly as possible where the system was set to hold the gear. Now they are simply electronic buttons.
 Or you can believe that a man who uses bar end shifters on road bars and rides a freewheel 6 speed is really knowledgeable about 12 speed Brifters.
 At least Flunky rides modern bikes with modern groups on them and invariably has completely different opinions than Krygowski and Liebermann but rarely points that out. That's a shame because it makes him seem like he is agreeing with them.

Gear wires are not flexible.
Before modern linear gear casing, spiral casing did have too much hysteresis for index systems beyond six speeds.  That changed 35 years ago.
--
Andrew Muzi
am@yellowjersey.org
Open every day since 1 April, 1971