Dura Ace 10-speed wheel interchange

Pete Beall said:

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 harriscyclery.comharriscyclery.comOpen ↗ Hard-to-find
parts shipped Worldwide captainbike.comcaptainbike.comOpen ↗
sheldonbrown.comsheldonbrown.comOpen ↗

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

Quoted message said:

Pete Beall said:

Rusty is riding Dura Ace 10-speed. In races
he's using

Reynolds

Quoted message said:

Quoted message said:

wheels, while for training he's using an Ultegra hub
wheel. These two

wheels

Quoted message said:

Quoted message said:

require a radical adjustment in the derailleur after
interchange in

order to

Quoted message said:

Quoted message said:

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

Quoted message said:

Quoted message said:

Ultegra wheel is the "odd man out."

Anyone have any idea what's going on here and
how to correct

it? I

Quoted message said:

Quoted message said:

'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 harriscyclery.comharriscyclery.comOpen ↗ Hard-to-
find parts shipped Worldwide captainbike.comcaptainbike.comOpen ↗
sheldonbrown.comsheldonbrown.comOpen ↗

Pete Beall said:

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 [ecologycenterclassic-ecologycenterclassic-Open ↗
.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" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Pete Beall said:

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

Quoted message said:

Quoted message said:

require a radical adjustment in the derailleur after
interchange in order

to

Quoted message said:

Quoted message said:

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

Quoted message said:

Quoted message said:

'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

Quoted message said:

Quoted message said:

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

Quoted message said:

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

Why not indeed?

Quoted message said:

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!