DuraAce 8-spd Compatability

On 8 Sep 2004 18:40:10 -0700, [email hidden] (Scott MacMillin)

Quoted message said:

Would a DA 8-speed STI rear shifter be compatable with an Ultegra 600
der and cassette? Thanx in advance.

If you put a 9sp Shimano cassette on, you will shift 8 cogs perfectly.
A good choice would be a 12/27 and just shift 13/27.

Scott MacMillin said:

Would a DA 8-speed STI rear shifter be compatable with an Ultegra 600
der and cassette? Thanx in advance.

It's compatible with any 8-speed cassette, but not designed to work with
anything but a 1996 or earlier Dura-Ace rear derailer.

However, there's an alternate cable routing trick that will let it work
with most Shimano derailers, see:

http://www.sheldonbrown.com/dura-ace.html#alternate

It's not clear why you're asking. If you already own these brifters,
might as well go ahead and use them.

However, if you're considering buying them, I'd advise against it unless
they're VERY cheap, you'd be better off with something more modern, even
from a much less prestigious model line, like Sora, my favorite
Shimano brifters.

Sheldon "Or Campagnolo..." Brown
+---------------------------------------------------------+
| It is good to learn from your mistakes; |
| It is better to learn from the mistakes of others. |
+---------------------------------------------------------+
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

quote='Sheldon Brown'Scott MacMillin said:

Would a DA 8-speed STI rear shifter be compatable with an Ultegra 600
der and cassette? Thanx in advance.

It's compatible with any 8-speed cassette, but not designed to work with
anything but a 1996 or earlier Dura-Ace rear derailer.

However, there's an alternate cable routing trick that will let it work
with most Shimano derailers, see:

http://www.sheldonbrown.com/dura-ace.html#alternate

It's not clear why you're asking. If you already own these brifters,
might as well go ahead and use them.

However, if you're considering buying them, I'd advise against it unless
they're VERY cheap, you'd be better off with something more modern, even
from a much less prestigious model line, like Sora, my favorite
Shimano brifters.

Sheldon "Or Campagnolo..." Brown
+---------------------------------------------------------+
| It is good to learn from your mistakes; |
| It is better to learn from the mistakes of others. |
+---------------------------------------------------------+
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[/QUOTE]

Sheldon,

why Sora? My experience is that Sora front brifter is pretty finnicky as it has less "fudge"possibilities.

smacmillian-<< Would a DA 8-speed STI rear shifter be compatable with an
Ultegra 600
der and cassette? >><BR><BR>

If you route the der cable on top of the rear der fixing bolt it 'should' shift
8s spacing.

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

Scott MacMillin said:

Quoted message said:

Quoted message said:

Would a DA 8-speed STI rear shifter be compatable with an Ultegra

600 der and cassette?

After answering his question I added:

Quoted message said:

Quoted message said:

It's not clear why you're asking. If you already own these brifters,
might as well go ahead and use them.

However, if you're considering buying them, I'd advise against it
unless they're VERY cheap, you'd be better off with something more modern,
even from a much less prestigious model line, like Sora, my favorite
Shimano brifters.

"Tuschinski" asked"

Quoted message said:

Sheldon,

why Sora? My experience is that Sora front brifter is pretty finnicky
as it has less "fudge"possibilities.

Scott MacMillin has a double, and doubles never offer any important
difficulties.

The Sora triple works fine if you use the chainrings designed the front
derailer is designed for, but that's not an issue with doubles.

Even with triples, you don't need to "fudge" if you use the correct size
middle and large chainrings, and set the derailer up properly.

The Sora brifters are much nicer biomechanically, in my opinion, for two
reasons:

•They use Campagnolo-style thumb buttons for the shift in the direction
of spring tension. I find the other STI shifters confusing because the
upshift motion and the downshift motion are the same, only differing
slightly in position.

•Sora brifters are the only drop-bar brake levers ever made with a reach
adjustment screw, a very good thing for people with short fingers.

Sheldon "If They Only Made 'Em For More Speeds..." Brown
+-------------------------------------+
| One can never know what is enough |
| until one knows what is too much. |
| --William Blake |
+-------------------------------------+
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

In article <[email hidden]>,
[email hidden] says...

Quoted message said:

Would a DA 8-speed STI rear shifter be compatable with an Ultegra 600
der and cassette? Thanx in advance.

derailler no, caseette yes.
-----------
Alex

"Sheldon Brown" <[email hidden]> skrev i en meddelelse
news:[email hidden]...

Scott MacMillin said:

Quoted message said:

Quoted message said:

Would a DA 8-speed STI rear shifter be compatable with an Ultegra

600 der and cassette?

After answering his question I added:

Quoted message said:

Quoted message said:

It's not clear why you're asking. If you already own these brifters,
might as well go ahead and use them.

However, if you're considering buying them, I'd advise against it
unless they're VERY cheap, you'd be better off with something more modern,
even from a much less prestigious model line, like Sora, my favorite
Shimano brifters.

"Tuschinski" asked"

Quoted message said:

Sheldon,

why Sora? My experience is that Sora front brifter is pretty finnicky
as it has less "fudge"possibilities.

Scott MacMillin has a double, and doubles never offer any important
difficulties.

The Sora triple works fine if you use the chainrings designed the front
derailer is designed for, but that's not an issue with doubles.

Even with triples, you don't need to "fudge" if you use the correct size
middle and large chainrings, and set the derailer up properly.

The Sora brifters are much nicer biomechanically, in my opinion, for two
reasons:

•They use Campagnolo-style thumb buttons for the shift in the direction
of spring tension. I find the other STI shifters confusing because the
upshift motion and the downshift motion are the same, only differing
slightly in position.

•Sora brifters are the only drop-bar brake levers ever made with a reach
adjustment screw, a very good thing for people with short fingers.

ST-R 600, 9speed "for people with small hands"

Michael

Sheldon "If They Only Made 'Em For More Speeds..." Brown
+-------------------------------------+
| One can never know what is enough |
| until one knows what is too much. |
| --William Blake |
+-------------------------------------+
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

quote='Sheldon Brown'Scott MacMillin said:

Quoted message said:

Quoted message said:

Would a DA 8-speed STI rear shifter be compatable with an Ultegra

600 der and cassette?

After answering his question I added:

Quoted message said:

Quoted message said:

It's not clear why you're asking. If you already own these brifters,
might as well go ahead and use them.

However, if you're considering buying them, I'd advise against it
unless they're VERY cheap, you'd be better off with something more modern,
even from a much less prestigious model line, like Sora, my favorite
Shimano brifters.

"Tuschinski" asked"

Quoted message said:

Sheldon,

why Sora? My experience is that Sora front brifter is pretty finnicky
as it has less "fudge"possibilities.

Scott MacMillin has a double, and doubles never offer any important
difficulties.

The Sora triple works fine if you use the chainrings designed the front
derailer is designed for, but that's not an issue with doubles.

Even with triples, you don't need to "fudge" if you use the correct size
middle and large chainrings, and set the derailer up properly.

The Sora brifters are much nicer biomechanically, in my opinion, for two
reasons:

•They use Campagnolo-style thumb buttons for the shift in the direction
of spring tension. I find the other STI shifters confusing because the
upshift motion and the downshift motion are the same, only differing
slightly in position.

•Sora brifters are the only drop-bar brake levers ever made with a reach
adjustment screw, a very good thing for people with short fingers.

Sheldon "If They Only Made 'Em For More Speeds..." Brown
+-------------------------------------+
| One can never know what is enough |
| until one knows what is too much. |
| --William Blake |
+-------------------------------------+
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[/QUOTE]

I agree that the Sora brifters are a better design as either Shimano and even Ergo. I also prefer the placing of the thumb button and like the mentioned adjustment screw. But it is a bit YMMV as I had some trouble adjusting a sora set on a double. It worked fine, but it did take more tuning than I am used to. But that's probably just my lack of skills 🙂

Sheldon Brown said:

Quoted message said:

Quoted message said:

>Would a DA 8-speed STI rear shifter be compatable with an Ultegra
600 der and cassette?

I thought that the DA STI pulled the same cable as a 9sp STI. If he
uses any rear derailleur except a DA x 8sp, he'll shift 9sp spacing
but will only have 7 clicks/8 gears. He's planning on using a 600
Rear derailleur.

Paul-<< I thought that the DA STI pulled the same cable as a 9sp STI. If he
uses any rear derailleur except a DA x 8sp, he'll shift 9sp spacing
but will only have 7 clicks/8 gears. He's planning on using a 600
Rear derailleur. >><BR><BR>

Nope. the 8s DA sti will not shift 9s spacing, reagrdless of rear der or cable
placement.

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 said:

Paul-<< I thought that the DA STI pulled the same cable as a 9sp STI. If he
uses any rear derailleur except a DA x 8sp, he'll shift 9sp spacing
but will only have 7 clicks/8 gears. He's planning on using a 600
Rear derailleur. >><BR><BR>

Nope. the 8s DA sti will not shift 9s spacing, reagrdless of rear der or cable
placement.

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

8-speed DA shifters *will* shift 9-speed spacing with a non-DA Shimano rear derailer *or* with the DA 7700 (9s) rear derailer. I use DA 8s bar-ends with DA 7700 rear derailer to get 9-speed.