Breaking chain for fixed gear

"Jacobe Hazzard" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Peter Cole said:

Your LBS needs a little enlightening. The load on a fixed gear chain is
much less than a mountain bike chain. Chain tension is related to gear
ratio.

I don't think this is entirely true. The torque about your rear axle is
related to gear ratio, but your chain couldn't care less what the rear
sprocket is (when considering tension anyway).
The tension in the top run of chain is determined only by the ratio of
your crank length to chainring diameter and the force applied to the pedal
perpendicular to the crank.

Thanks for the correction. Of course to get a small chainring on a fixed gear,
you'd need an impossibly small rear sprocket. That, and the maximum track
sprocket size, pretty much sets chainring size on a fixer.

cam-<< Where should one break a chain for fixed gear. My LBS advised me not to
use
the proprietary quick link as it's breaking strength was less than regular
links. >><BR><BR>

garbage-I have used a PC-48 for years on my fixie, with the link, w/o problem.
If you are really concerned, get a track chain, with the big beefy masterlink.,
Like a PC-1

Peter Chisholm
Vecchio's Bicicletteria
1833 Pearl St.
Boulder, CO, 80302
(303)440-3535
http://www.vecchios.com
"Ruote convenzionali costruite eccezionalmente bene"

Phil Brown said:

I think you mean 3/32". That's standard derailleur chain. Track chainwheels and
cogs take either 1/8" or 3/32".

Absolutely right. I was never any good at fractions ;-)

Qui si parla Campagnolo said:

cam-<< Where should one break a chain for fixed gear. My LBS advised me not to
use
the proprietary quick link as it's breaking strength was less than regular
links. >><BR><BR>

garbage-I have used a PC-48 for years on my fixie, with the link, w/o problem.
If you are really concerned, get a track chain, with the big beefy masterlink.,
Like a PC-1

Peter Chisholm
Vecchio's Bicicletteria
1833 Pearl St.
Boulder, CO, 80302
(303)440-3535
http://www.vecchios.com
"Ruote convenzionali costruite eccezionalmente bene"

Thanks for the useful comments, all. You've been very helpful.

Cheers

Cam

[email hidden] (Qui si parla Campagnolo ) wrote in message news:<[email hidden]>...

Quoted message said:

cam-<< Where should one break a chain for fixed gear. My LBS advised me not to
use
the proprietary quick link as it's breaking strength was less than regular
links. >><BR><BR>

garbage-I have used a PC-48 for years on my fixie, with the link, w/o problem.
If you are really concerned, get a track chain, with the big beefy masterlink.,
Like a PC-1

Peter Chisholm

I have about 1000 mile on my first fixed gear. I use a PC-1. At
about 150 miles the powerlink came apart. I made it home and removed
the powerlink and joined the chain with a regular link and have cycled
~850 miles since then with no problems.

Note that the powerlink on the PC-1 is different from the PC-48, 58,
59, etc. (I have used these without problems). On the PC48 it is two
links with one pin on each link and it looks like it is one piece.
The PC1 has one link with a pin pressed in on both sides (not one
piece) and the other link has two slots. In my case one of those
pressed in pins came out.

Speaking only from my own experience.
Tom

Benjamin Lewis <[email hidden]> wrote in message news:<[email hidden]>...

Quoted message said:

B. C. Cletta said:

i'm getting good service w/ the KMC Z410(?), 8-USD. quiet unless
it needs a lube. it may be a full bushing, i forget.

Nope, it's bushingless, unfortunately. That's what I'm using at the moment
(too soon to rate it). Funny, it cost me $8 Canadian.

maybe i'm using a '410H', KMC's w-pg sezs it's bushed. (i gotta
clean the chain one day.)
i know people who swear by the IZUMI Eco, 20-USD, bushed, quiet,
NJS.
(it's funny how i've become a big fan of quiet chains. it takes me
a few miles to adjust to the deafening racket of a multi.)

B.C. Cletta said:

Benjamin Lewis <[email hidden]> wrote in message news:<[email hidden]>...

Quoted message said:

B. C. Cletta said:

i'm getting good service w/ the KMC Z410(?), 8-USD. quiet unless
it needs a lube. it may be a full bushing, i forget.

Nope, it's bushingless, unfortunately. That's what I'm using at the moment
(too soon to rate it). Funny, it cost me $8 Canadian.

maybe i'm using a '410H', KMC's w-pg sezs

What language is that?

Greg

Quoted message said:

B.C. Cletta said:

maybe i'm using a '410H', KMC's w-pg sezs it's bushed. (i gotta
clean the chain one day.)
i know people who swear by the IZUMI Eco, 20-USD, bushed, quiet,
NJS.

On Tue, 27 Apr 2004 02:11:28 GMT, "G.T." <[email hidden]>

Quoted message said:

What language is that?

It appears to be some sort of fusion of English and g.danielsese.
--
Rick Onanian

On 26 Apr 2004 17:51:49 -0700, [email hidden] (B.C. Cletta)

Quoted message said:

i know people who swear by the IZUMI Eco, 20-USD, bushed, quiet,
NJS.

It may be that some people will find the Izumi chain model commonly
called "Eco" to have some satisfactory qualities, but certification
for professional Keirin use (the NJS logo) isn't among them.

I assume you're innocently repeating what you've read about this chain
elsewhere. I will leave for others to determine if the ebay
entrepeneurs and other vendors that claim NJS credentials for this
model do so out of simple cluelessness, or if they're intentionally
practicing upon the inexperience of those whom they would entice to
buy the chain.
-------------------------------
John Dacey
Business Cycles, Miami, Florida
Since 1983
Our catalogue of track equipment: online since 1996.
http://www.businesscycles.com

Quoted message said:

I have about 1000 mile on my first fixed gear. I use a PC-1. At
about 150 miles the powerlink came apart. I made it home and removed

Installer error!
*duck and run*

Just kidding 😉

--
Phil, Squid-in-Training

John Dacey <[email hidden]> wrote in message news:<[email hidden]>...

Quoted message said:

On 26 Apr 2004 17:51:49 -0700, [email hidden] (B.C. Cletta)

Quoted message said:

i know people who swear by the IZUMI Eco, 20-USD, bushed, quiet,
NJS.

It may be that some people will find the Izumi chain model commonly
called "Eco" to have some satisfactory qualities, but certification
for professional Keirin use (the NJS logo) isn't among them.

I assume you're innocently repeating what you've read about this chain
elsewhere. I will leave for others to determine if the ebay
entrepeneurs and other vendors that claim NJS credentials for this
model do so out of simple cluelessness, or if they're intentionally
practicing upon the inexperience of those whom they would entice to
buy the chain.

said to be an "Eco" & he got the pic right but i will defer to your experience:
<http://snipurl.com/612s>

what about these? seems kinda low end.
<http://snipurl.com/612v>

Quoted message said:

-------------------------------
John Dacey
Business Cycles, Miami, Florida
Since 1983
Our catalogue of track equipment: online since 1996.
http://www.businesscycles.com

On 28 Apr 2004 20:03:06 -0700, [email hidden] (B.C. Cletta)

Quoted message said:

John Dacey <[email hidden]> wrote in message news:<[email hidden]>...

Quoted message said:

On 26 Apr 2004 17:51:49 -0700, [email hidden] (B.C. Cletta)

Quoted message said:

i know people who swear by the IZUMI Eco, 20-USD, bushed, quiet,
NJS.

It may be that some people will find the Izumi chain model commonly
called "Eco" to have some satisfactory qualities, but certification
for professional Keirin use (the NJS logo) isn't among them.

I assume you're innocently repeating what you've read about this chain
elsewhere. I will leave for others to determine if the ebay
entrepeneurs and other vendors that claim NJS credentials for this
model do so out of simple cluelessness, or if they're intentionally
practicing upon the inexperience of those whom they would entice to
buy the chain.

said to be an "Eco" & he got the pic right but i will defer to your experience:
<http://snipurl.com/612s>

The imprimatur signifying keirin certification (NJS logo) appears
neither on the packaging nor on any of the chain's links. This model
is _not_ approved for professional keirin use.

Quoted message said:

what about these? seems kinda low end.
<http://snipurl.com/612v>

Except for the dustcap, the pedal in the photos is a dead ringer for
the MKS "Sylvan Track", which does not have pro keirin credentials.
However, a closeup of the rear cage shows it to actually be a MKS
"Unique Custom" model, whose rear cage is stamped with the NJS logo
(upper right of cage), signifying that it does, in fact, have keirin
certification.

The Sylvan Track and Unique Custom models are quite good values, but
few people will mistake their finish, bearing quality and weight with
one of MKS' premium track pedals like the RX-1, Custom Nuevo or Royal
Nuevo.
-------------------------------
John Dacey
Business Cycles, Miami, Florida
Since 1983
Our catalogue of track equipment: online since 1996.
http://www.businesscycles.com

John Dacey <[email hidden]> wrote in message news:<[email hidden]>...

Quoted message said:

On 28 Apr 2004 20:03:06 -0700, [email hidden] (B.C. Cletta)

Quoted message said:

John Dacey <[email hidden]> wrote in message news:<[email hidden]>...

Quoted message said:

On 26 Apr 2004 17:51:49 -0700, [email hidden] (B.C. Cletta)
wrote:

> i know people who swear by the IZUMI Eco, 20-USD, bushed, quiet,
>NJS.

It may be that some people will find the Izumi chain model commonly
called "Eco" to have some satisfactory qualities, but certification
for professional Keirin use (the NJS logo) isn't among them.

I assume you're innocently repeating what you've read about this chain
elsewhere. I will leave for others to determine if the ebay
entrepeneurs and other vendors that claim NJS credentials for this
model do so out of simple cluelessness, or if they're intentionally
practicing upon the inexperience of those whom they would entice to
buy the chain.

said to be an "Eco" & he got the pic right but i will defer to your experience:
<http://snipurl.com/612s>

The imprimatur signifying keirin certification (NJS logo) appears
neither on the packaging nor on any of the chain's links. This model
is _not_ approved for professional keirin use.

sorry, guess i should have noted that mid photo far right, one (&
only one) link has what looks like the NJS circle(?).

Quoted message said:

Quoted message said:

what about these? seems kinda low end.
<http://snipurl.com/612v>

Except for the dustcap, the pedal in the photos is a dead ringer for
the MKS "Sylvan Track", which does not have pro keirin credentials.
However, a closeup of the rear cage shows it to actually be a MKS
"Unique Custom" model, whose rear cage is stamped with the NJS logo
(upper right of cage), signifying that it does, in fact, have keirin
certification.

The Sylvan Track and Unique Custom models are quite good values, but
few people will mistake their finish, bearing quality and weight with
one of MKS' premium track pedals like the RX-1, Custom Nuevo or Royal
Nuevo.

the Sylvan are OK but i think the spindle bends a little too
easily. the Unique Custom might address this issue.

Quoted message said:

-------------------------------
John Dacey
Business Cycles, Miami, Florida
Since 1983
Our catalogue of track equipment: online since 1996.
http://www.businesscycles.com

On 29 Apr 2004 21:02:19 -0700, [email hidden] (B.C. Cletta)

Quoted message said:

Quoted message said:

Quoted message said:

> > i know people who swear by the IZUMI Eco, 20-USD, bushed, quiet,
> >NJS.
>
> It may be that some people will find the Izumi chain model commonly
> called "Eco" to have some satisfactory qualities, but certification
> for professional Keirin use (the NJS logo) isn't among them.
>
> I assume you're innocently repeating what you've read about this chain
> elsewhere. I will leave for others to determine if the ebay
> entrepeneurs and other vendors that claim NJS credentials for this
> model do so out of simple cluelessness, or if they're intentionally
> practicing upon the inexperience of those whom they would entice to
> buy the chain.

said to be an "Eco" & he got the pic right but i will defer to your experience:
<http://snipurl.com/612s>

The imprimatur signifying keirin certification (NJS logo) appears
neither on the packaging nor on any of the chain's links. This model
is _not_ approved for professional keirin use.

sorry, guess i should have noted that mid photo far right, one (&
only one) link has what looks like the NJS circle(?).

That's a JIS symbol, seen here on the left side of the wrench flat on
the axle of a MKS Custom Unique pedal in this picture:
http://www.businesscycles.com/graphics/jis3.jpg (43.2k file
size)

The NJS logo is seen at the right of the same pedal's rear cage plate
here:
http://www.businesscycles.com/graphics/nis_njs.jpg (33.5k file
size)

-------------------------------
John Dacey
Business Cycles, Miami, Florida
http://www.businesscycles.com
Now in our twenty-first year.
Our catalog of track equipment: eighth year online
-------------------------------

John Dacey said:

That's a JIS symbol, seen here on the left side of the wrench flat on
the axle of a MKS Custom Unique pedal in this picture:
http://www.businesscycles.com/graphics/jis3.jpg (43.2k file
size)

The NJS logo is seen at the right of the same pedal's rear cage plate
here:
http://www.businesscycles.com/graphics/nis_njs.jpg (33.5k file
size)

Nice photos. Here's another:
http://www.yellowjersey.org/NJS.JPG

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