Dura Ace 10-speed wheel interchange

Rusty is riding Dura Ace 10-speed. In races he's using
Reynolds wheels, while for training he's using an Ultegra
hub wheel. These two wheels require a radical adjustment in
the derailleur after interchange in order to get smooth
shifting. His last race, adjusted for the Reynolds, he had
to take a neutral wheel which shifted fine; this seems to
say that the older Ultegra wheel is the "odd man out."

Anyone have any idea what's going on here and how
to correct it? I 'd like to get him set up with
some heavy duty interchangeable wheels for Ecology
Pintler
[http://www.ecologycenterclassic.org/pintler.htm]
where, last year, we had 23+ punctures in the
pro/I/II and had to cut the race by a lap because
we ran out of wheels.

Pete

--
www.petebeall.net

Pete Beall wrote:

> Rusty is riding Dura Ace 10-speed. In races he's
> using Reynolds wheels, while for training he's
> using an Ultegra hub wheel. These two wheels
> require a radical adjustment in the derailleur
> after interchange in order to get smooth
> shifting. His last race, adjusted for the
> Reynolds, he had to take a neutral wheel which
> shifted fine; this seems to say that the older
> Ultegra wheel is the "odd man out."
>
> Anyone have any idea what's going on here and
> how to correct it? I 'd like to get him set up
> with some heavy duty interchangeable wheels

You need to play with spacers between the right cone and
its locknut.

If you need to loosen the cable to fix the indexing, adding
thin spacers will correct it, and conversely.

There are 0.1 mm shim washers that will work for this,
commonly used for chainring bolts but they will also match
up with a standard 10 mm axle.

Sheldon "Interchangeabilitude" Brown +-------------------------------------------------------
+
| Do what you can, with what you have, where you are. | --
| Theodore Roosevelt |
+-------------------------------------------------------+
Harris Cyclery, West Newton, Massachusetts Phone 617-244-
9772 FAX 617-244-1041 http://harriscyclery.com Hard-to-find
parts shipped Worldwide http://captainbike.com
http://sheldonbrown.com

I'll have to play with this. The "bad" wheel uses a
spacer and I'm not sure about the "good" wheels. Thanks
for the input

Pete

"Sheldon Brown" <captbike@sheldonbrown.com> wrote in message
news:40B2CA7C.10008@sheldonbrown.com...
> Pete Beall wrote:
>
> > Rusty is riding Dura Ace 10-speed. In races
> > he's using
Reynolds
> > wheels, while for training he's using an Ultegra hub
> > wheel. These two
wheels
> > require a radical adjustment in the derailleur after
> > interchange in
order to
> > get smooth shifting. His last race, adjusted for the
> > Reynolds, he had to take a neutral wheel which shifted
> > fine; this seems to say that the
older
> > Ultegra wheel is the "odd man out."
> >
> > Anyone have any idea what's going on here and
> > how to correct
it? I
> > 'd like to get him set up with some heavy duty
> > interchangeable wheels
>
> You need to play with spacers between the right cone and
> its locknut.
>
> If you need to loosen the cable to fix the indexing,
> adding thin spacers will correct it, and conversely.
>
> There are 0.1 mm shim washers that will work for this,
> commonly used for chainring bolts but they will also match
> up with a standard 10 mm axle.
>
> Sheldon "Interchangeabilitude" Brown +-------------------------------------------------------
> +
> | Do what you can, with what you have, where you are. |
> | --Theodore Roosevelt |
> +-------------------------------------------------------+
> Harris Cyclery, West Newton, Massachusetts Phone 617-244-
> 9772 FAX 617-244-1041 http://harriscyclery.com Hard-to-
> find parts shipped Worldwide http://captainbike.com
> http://sheldonbrown.com

On Mon, 24 May 2004 20:35:32 -0700, "Pete Beall"
<petebeall@cableone.net> wrote:

> Rusty is riding Dura Ace 10-speed. In races he's
> using Reynolds wheels, while for training he's
> using an Ultegra hub wheel. These two wheels
> require a radical adjustment in the derailleur
> after interchange in order to get smooth
> shifting. His last race, adjusted for the
> Reynolds, he had to take a neutral wheel which
> shifted fine; this seems to say that the older
> Ultegra wheel is the "odd man out."
>
> Anyone have any idea what's going on here and how
> to correct it? I 'd like to get him set up with
> some heavy duty interchangeable wheels for
> Ecology Pintler [http://www.ecologycenterclassic-
> .org/pintler.htm] where, last year, we had 23+
> punctures in the pro/I/II and had to cut the race
> by a lap because we ran out of wheels.
>
>Pete

In my experience your observation is right: that Ultegra is
slightly different from Dura-Ace (and many high-end
aftermarket hubs). I think Ultegra is slightly wider.

I'd recommend carefully measuring a Dura-Ace and matching
all his wheels to that. From memory here (so it's probably
wrong!) the Dura-Ace hubs I've measured are around 40.5 +/-
0.2mm from the dropout to the cassette stop.

Why not get a 10 speed cassette for the other wheel?

They are expensive, however, you are prematurely wearing the
chain out, and DA10 chains are not super durable to begin
with. Once the chain is worn its only a matter of time
before the DA10 cassette gets eaten as well.

"dianne_1234" <dianne_1234@NOSPAMyahoo.com> wrote in message
news:tsmbb0dr2s5t49om4f30pd9uop4u7548bk@4ax.com...
> On Mon, 24 May 2004 20:35:32 -0700, "Pete Beall"
> <petebeall@cableone.net> wrote:
>
> > Rusty is riding Dura Ace 10-speed. In races
> > he's using Reynolds wheels, while for training
> > he's using an Ultegra hub wheel. These two
wheels
> >require a radical adjustment in the derailleur after
> >interchange in order
to
> >get smooth shifting. His last race, adjusted for the
> >Reynolds, he had to take a neutral wheel which shifted
> >fine; this seems to say that the older Ultegra wheel is
> >the "odd man out."
> >
> > Anyone have any idea what's going on here and
> > how to correct
it? I
> >'d like to get him set up with some heavy duty
> >interchangeable wheels for Ecology Pintler
> >[http://www.ecologycenterclassic.org/pintler.htm] where,
> >last year, we had 23+ punctures in the pro/I/II and had
> >to cut the race
by a
> >lap because we ran out of wheels.
> >
> >Pete
>
> In my experience your observation is right: that Ultegra
> is slightly different from Dura-Ace (and many high-end
> aftermarket hubs). I think Ultegra is slightly wider.
>
> I'd recommend carefully measuring a Dura-Ace and matching
> all his wheels to that. From memory here (so it's probably
> wrong!) the Dura-Ace hubs I've measured are around 40.5
> +/-0.2mm from the dropout to the cassette stop.

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"JayofMontreal" <winickj0spam@vif.com> wrote in message
news:jpltc.48891$tb4.1678056@news20.bellglobal.com...
> Why not get a 10 speed cassette for the other wheel?

Why not indeed?

> They are expensive, however, you are prematurely wearing
> the chain out, and DA10 chains are not super durable to
> begin with. Once the chain is worn its only a matter of
> time before the DA10 cassette gets eaten as well.

Kinda answered your own question there, Jay.

PS Please don't top-post.
--
Mark South Citizen of the World, Denizen of the Net <<Tiens!
Ce poulet a une grenade!