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new chain, slack



 
 
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  #61  
Old January 3rd 18, 04:21 AM posted to rec.bicycles.tech
Frank Krygowski[_4_]
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Posts: 10,538
Default new chain, slack

On 1/2/2018 8:37 PM, Emanuel Berg wrote:
Frank Krygowski wrote:

I check vertical movement at the crank
position where the chain is tightest. I don't
think the measurement is critical, as long as
there's a little slack - say at least
a centimeter.


Yes, but is there a tool to do that? I mean to
to *only* that... not a ruler.


Well, not to do *only* that. I use the same took to scratch my elbow
when it itches. Also, to turn pages in a book.

IOW, why would you need a special tool?


--
- Frank Krygowski
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  #62  
Old January 3rd 18, 04:48 AM posted to rec.bicycles.tech
Emanuel Berg[_2_]
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Posts: 1,035
Default new chain, slack

Frank Krygowski wrote:

Well, not to do *only* that. I use the same
took to scratch my elbow when it itches.
Also, to turn pages in a book.

IOW, why would you need a special tool?


"You can't control what you can't measure."?

But of course, no one "needs" any of this...
just a bunch of machinery and scrap

--
underground experts united
http://user.it.uu.se/~embe8573
  #63  
Old January 3rd 18, 05:40 AM posted to rec.bicycles.tech
Sir Ridesalot
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Posts: 5,270
Default new chain, slack

On Tuesday, January 2, 2018 at 10:21:26 PM UTC-5, Frank Krygowski wrote:
On 1/2/2018 8:37 PM, Emanuel Berg wrote:
Frank Krygowski wrote:

I check vertical movement at the crank
position where the chain is tightest. I don't
think the measurement is critical, as long as
there's a little slack - say at least
a centimeter.


Yes, but is there a tool to do that? I mean to
to *only* that... not a ruler.


Well, not to do *only* that. I use the same took to scratch my elbow
when it itches. Also, to turn pages in a book.

IOW, why would you need a special tool?


--
- Frank Krygowski


The OP is trolling - yet again.

Cheers
  #64  
Old January 3rd 18, 06:41 AM posted to rec.bicycles.tech
Emanuel Berg[_2_]
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Posts: 1,035
Default new chain, slack

Sir Ridesalot wrote:

The OP is trolling - yet again.


How are restrictions these days, are bikes
allowed in the mental institution?

--
underground experts united
http://user.it.uu.se/~embe8573
  #65  
Old January 3rd 18, 10:08 PM posted to rec.bicycles.tech
dave[_3_]
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Posts: 61
Default new chain, slack

On Wed, 03 Jan 2018 01:52:31 +0100, Emanuel Berg wrote:

Frank Krygowski wrote:

If you mean a tool to check the wear of a chain, yes there are several
varieties.


No, I mean a tool to check how tightly the chain is mounted on the bike,
which I suppose is a function of chain wear to some degree but even more
so the distance between sprocket and chainring, i.e. how far the rear
wheel is pulled back?


I use the Mk. 1 Finger.


And the method of quantification could be the possible vertical movement
of the chain at its loosest?


Exactly! Finger the chain upwards. If there is too much slack tighten. If
it's too taught loosen it.

So if there is anyone out there who can tell me how to tighten the chain
on a bike with no adjustment I would be grateful.

34 front 23 rear on an Alfine 11. 1/2 link tighter would be nice.
--
davethedave
  #66  
Old January 3rd 18, 10:57 PM posted to rec.bicycles.tech
AMuzi
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Posts: 13,447
Default new chain, slack

On 1/3/2018 3:08 PM, dave wrote:
On Wed, 03 Jan 2018 01:52:31 +0100, Emanuel Berg wrote:

Frank Krygowski wrote:

If you mean a tool to check the wear of a chain, yes there are several
varieties.


No, I mean a tool to check how tightly the chain is mounted on the bike,
which I suppose is a function of chain wear to some degree but even more
so the distance between sprocket and chainring, i.e. how far the rear
wheel is pulled back?


I use the Mk. 1 Finger.


And the method of quantification could be the possible vertical movement
of the chain at its loosest?


Exactly! Finger the chain upwards. If there is too much slack tighten. If
it's too taught loosen it.

So if there is anyone out there who can tell me how to tighten the chain
on a bike with no adjustment I would be grateful.

34 front 23 rear on an Alfine 11. 1/2 link tighter would be nice.


Why didn't you use a half link then?

On some single-point ends, we remove just a slight amount
(less than 0.5mm) from the face with a rotary air file.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


  #67  
Old January 3rd 18, 11:38 PM posted to rec.bicycles.tech
Frank Krygowski[_4_]
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Posts: 10,538
Default new chain, slack

On 1/3/2018 4:57 PM, AMuzi wrote:
On 1/3/2018 3:08 PM, dave wrote:
On Wed, 03 Jan 2018 01:52:31 +0100, Emanuel Berg wrote:

Frank Krygowski wrote:

If you mean a tool to check the wear of a chain, yes there are several
varieties.

No, I mean a tool to check how tightly the chain is mounted on the bike,
which I suppose is a function of chain wear to some degree but even more
so the distance between sprocket and chainring, i.e. how far the rear
wheel is pulled back?


I use the Mk. 1 Finger.


And the method of quantification could be the possible vertical movement
of the chain at its loosest?


Exactly! Finger the chain upwards. If there is too much slack tighten. If
it's too taught loosen it.

So if there is anyone out there who can tell me how to tighten the chain
on a bike with no adjustment I would be grateful.

34 front 23 rear on an Alfine 11. 1/2 link tighter would be nice.


Why didn't you use a half link then?


I'm seeing marketing opportunities here. For Emanuel, a special iFinger
tool, bluetooth connected to one's phone, using super GPS to tell how
far the single speed chain is rising when force is applied. No more by
guess and by golly, by golly!

And sure, half links sound useful, but why stop there? By choosing
between the half link, the one-third link, the one-quarter link, etc. a
non-derailleur cyclist could finally get his chain tension perfectly
right. Just the thing to show off at the coffee shop!

And software! We have programmers here who could write the iFinger app
to help select just the right combination of non-integer links.

We'll make millions of dollars! ... or, well, maybe tens of dollars. Or
maybe ones of dollars.


--
- Frank Krygowski
  #68  
Old January 3rd 18, 11:54 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
external usenet poster
 
Posts: 1,035
Default new chain, slack

Frank Krygowski wrote:

I'm seeing marketing opportunities here.
For Emanuel, a special iFinger tool,
bluetooth connected to one's phone, using
super GPS to tell how far the single speed
chain is rising when force is applied.
No more by guess and by golly, by golly!


Well, I don't have either smartphone,
Bluetooth, or GPS. Do you, since you
mention them?

The tool I imagined was a sort of carpentier
only the other way around, so the chain
movement (play) will push two bars apart from
each other - only problem is, how would one
fixate it? And if one could, one might as well
fixate a ruler and use that!

Perhaps one could make a small foot for a ruler
and simply have it stand vertically from the
floor, next to the bike? A big ruler, like they
once had in schools.

But fear not, if I ever build one, I'll publish
a photo here...

And software! We have programmers here who
could write the iFinger app


DIY Frank

Apps are written in Java (from 1995), while
I write Lisp (1958) and C (1972) on my Raspbian
box, Raspbian being a Debian fork, Debian
a Linux distribution, and Linux an
implementation of Unix from 1969.

--
underground experts united
http://user.it.uu.se/~embe8573
  #69  
Old January 3rd 18, 11:59 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
external usenet poster
 
Posts: 1,035
Default new chain, slack

I wrote:

and Linux an implementation of Unix
from 1969.


Ambiguous sentence.

Unix (or UNIX) is from 1969, Linux is from
1991. The GNU project, which is as much UNIX as
Linux - more in some ways - is from 1983.

--
underground experts united
http://user.it.uu.se/~embe8573
  #70  
Old January 4th 18, 12:54 AM posted to rec.bicycles.tech
AMuzi
external usenet poster
 
Posts: 13,447
Default new chain, slack

On 1/3/2018 4:38 PM, Frank Krygowski wrote:
On 1/3/2018 4:57 PM, AMuzi wrote:
On 1/3/2018 3:08 PM, dave wrote:
On Wed, 03 Jan 2018 01:52:31 +0100, Emanuel Berg wrote:

Frank Krygowski wrote:

If you mean a tool to check the wear of a chain, yes
there are several
varieties.

No, I mean a tool to check how tightly the chain is
mounted on the bike,
which I suppose is a function of chain wear to some
degree but even more
so the distance between sprocket and chainring, i.e. how
far the rear
wheel is pulled back?

I use the Mk. 1 Finger.


And the method of quantification could be the possible
vertical movement
of the chain at its loosest?

Exactly! Finger the chain upwards. If there is too much
slack tighten. If
it's too taught loosen it.

So if there is anyone out there who can tell me how to
tighten the chain
on a bike with no adjustment I would be grateful.

34 front 23 rear on an Alfine 11. 1/2 link tighter would
be nice.


Why didn't you use a half link then?


I'm seeing marketing opportunities here. For Emanuel, a
special iFinger tool, bluetooth connected to one's phone,
using super GPS to tell how far the single speed chain is
rising when force is applied. No more by guess and by golly,
by golly!

And sure, half links sound useful, but why stop there? By
choosing between the half link, the one-third link, the
one-quarter link, etc. a non-derailleur cyclist could
finally get his chain tension perfectly right. Just the
thing to show off at the coffee shop!

And software! We have programmers here who could write the
iFinger app to help select just the right combination of
non-integer links.

We'll make millions of dollars! ... or, well, maybe tens of
dollars. Or maybe ones of dollars.



But half links are an actual thing, 100+ years old, cheap,
available anywhere. More readily found than a 35t chainring!

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


 




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