Dura Ace Jockey Wheels...

rosco' reverse-the-following'ocsor_g said:

Quick question - I just took apart my 7 speed D-A rear derailer, and
didn't pay enough attention to which jockey wheel was in what
position. One of the wheels is metal and the other is plastic. Does
the metal wheel go in the upper position closest to the freewheel
cogs?

I don't know which is metal and which is plastic, but does one of them have
lateral play in it??

IIRC, the one that moves side-to-side is technically called the jockey
pulley and goes on the high (closest to the cassette) side. IIRC, the
bottom one is referred to as the 'tension' pulley.

On Fri, 05 Nov 2004 16:16:46 GMT, "Neil Brooks" <[email hidden]>

Quoted message said:

rosco' reverse-the-following'ocsor_g said:

Quick question - I just took apart my 7 speed D-A rear derailer, and
didn't pay enough attention to which jockey wheel was in what
position. One of the wheels is metal and the other is plastic. Does
the metal wheel go in the upper position closest to the freewheel
cogs?

I don't know which is metal and which is plastic, but does one of them have
lateral play in it??

IIRC, the one that moves side-to-side is technically called the jockey
pulley and goes on the high (closest to the cassette) side. IIRC, the
bottom one is referred to as the 'tension' pulley.

In Shimano-speak the jockey wheel is referred to as the "Centeron"
pulley. Look for the word "Centeron" somewhere on the pulley. That one
goes next to the cogs.

jeverett3<AT>earthlink<DOT>net http://home.earthlink.net/~jeverett3

"rosco" <reverse-the-following"ocsor_g"@hotmail.com> wrote in message news:<[email hidden]>...

Quoted message said:

Quick question - I just took apart my 7 speed D-A rear derailer, and didn't
pay enough attention to which jockey wheel was in what position. One of the
wheels is metal and the other is plastic. Does the metal wheel go in the
upper position closest to the freewheel cogs?

The upper one is probably marked "Centeron" or "ceramic bush"- it's
the one with a little more side-to-side play.

Jeff

Rosco-<< Quick question - I just took apart my 7 speed D-A rear derailer, and
didn't
pay enough attention to which jockey wheel was in what position. >><BR><BR>

The metal one goes on top....use grease around the ceramic bushings.

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

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

Quoted message said:

Rosco-<< Quick question - I just took apart my 7 speed D-A rear derailer,

and

Quoted message said:

didn't
pay enough attention to which jockey wheel was in what position.

Quoted message said:

<BR><BR>

The metal one goes on top....use grease around the ceramic bushings.

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

Thank you Peter.

This unit didn't have anything like "ceramic bushing" or "Centeron" on
either wheel. I was 90% sure the metal one came from the top, but I wasn't
100% sure (too much day dreaming while taking it apart).