shimano 600 STI - 8 speed; will it work?

Andrew Behm said:

I'm considering upgrading my shifters to STI and I saw a pair of 600s at a
local shop here for $50 with cables. The problem I see though is that
they're 8 speed and my bike has a 7 ring spocket. That's only 7 speeds; but
EIGHT speed shifters. Thanks to my superior wit, I was able to notice the
difference right away. ALAS. Does that matter?

8-speed shifters generally can be made to work OK with 7-speed clusters.

Note that the 8-speed 600/Ultegra units will not work with a triple
crankset.

Sheldon "Upgrades" Brown
+-------------------------------------------------+
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http://harriscyclery.com
Hard-to-find parts shipped Worldwide
http://captainbike.com http://sheldonbrown.com

Andrew Behm said:

Hi,
I'm considering upgrading my shifters to STI and I saw a pair of 600s at
a local shop here for $50 with cables. The problem I see though is that
they're 8 speed and my bike has a 7 ring spocket. That's only 7 speeds;
but EIGHT speed shifters. Thanks to my superior wit, I was able to
notice the difference right away. ALAS. Does that matter? I don't know
enough about it to know what to buy. Right now i have 105 downtube
shifters; a dura ace front and a 105 rear. I also have an ultegra rear
that I also bought used and it didn't seem to be compatable with my
setup. I was under the assumption that most shimano equipment was
compatable; except for some older DA stuff. If anyone can help i'd
really appreciate it. If you need model numbers I can get them.
Oh i'm also considering replacing my 105 cranks with some DA FC-7510s
I saw at the same place for $50. Does that sound like a good
idea/deal? hah.
Thanks,
Andrew Behm
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7 speed Shimano spacing is 5.0 mm center to center. 8 speed Shimano
spacing is 4.8 mm center to center. You can set the derailer stops and
adjust the cable to shift close enough to make most chains happy with
the proposed combinations, but it may be fussy. The FC-7510 crank the
you quote must either be a typo or a unit that I have never seen or
heard of. The FC-7410 is a very nice DURA ACE crank; liking a 103 mm
Bottom Bracket. You may be spending smaller increments of cash to
upgrade, but you need to consider what the frame is worth that you are
hanging all this stuff on.

--

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

Quoted message said:

Andrew Behm said:

I'm considering upgrading my shifters to STI and I saw a pair of 600s at

a

Quoted message said:

Quoted message said:

local shop here for $50 with cables. The problem I see though is that
they're 8 speed and my bike has a 7 ring spocket. That's only 7 speeds;

but

Quoted message said:

Quoted message said:

EIGHT speed shifters. Thanks to my superior wit, I was able to notice

the

Quoted message said:

Quoted message said:

difference right away. ALAS. Does that matter?

8-speed shifters generally can be made to work OK with 7-speed clusters.

OK so it's not the greatest? I'll keep looking in that case.
Thanks-

andrew

Quoted message said:

Note that the 8-speed 600/Ultegra units will not work with a triple
crankset.

Sheldon "Upgrades" Brown
+-------------------------------------------------+
| Search the Quality Bicycle Products Catalog |
| and order on line: |
| http://sheldonbrown.com/quality |
+-------------------------------------------------+
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

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

Quoted message said:

Andrew Behm wrote:
... Oh i'm also considering replacing my 105 cranks with some DA FC-7510s

Quoted message said:

I saw at the same place for $50. Does that sound like a good
idea/deal? hah.

If they are indeed the FC-7410 cranks, the best tapered cranks/BB ever
made, for $50, it is a [censored] steal! Buy them used at that price and
it is still a great price.

$50 for the 600 STI is an excellent price if new.

"Andrew Behm" <commandrew(at)bendcable.com> wrote in message
news:[email hidden]...

Quoted message said:

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

Quoted message said:

Andrew Behm said:

I'm considering upgrading my shifters to STI and I saw a pair of 600s

at

Quoted message said:

a

Quoted message said:

Quoted message said:

local shop here for $50 with cables. The problem I see though is that
they're 8 speed and my bike has a 7 ring spocket. That's only 7

speeds;

Quoted message said:

but

Quoted message said:

Quoted message said:

EIGHT speed shifters. Thanks to my superior wit, I was able to notice

the

Quoted message said:

Quoted message said:

difference right away. ALAS. Does that matter?

8-speed shifters generally can be made to work OK with 7-speed clusters.

OK so it's not the greatest? I'll keep looking in that case.
Thanks-

andrew

Quoted message said:

Note that the 8-speed 600/Ultegra units will not work with a triple
crankset.

Sheldon "Upgrades" Brown
+-------------------------------------------------+
| Search the Quality Bicycle Products Catalog |
| and order on line: |
| http://sheldonbrown.com/quality |
+-------------------------------------------------+
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

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It works pretty darn good IMO.
I use 8-speed indexed bar-end shifters on my zero-dish 7-speed touring bike.
I just lock out the bottom (smallest-cog) shift.
I've missed maybe a couple shifts over many years, and many many miles...
For $50, I'd sure go that route!

-pete

In article <[email hidden]>,

Andrew Behm commandrew(at)bendcable.com said:

Hi,

I'm considering upgrading my shifters to STI and I saw a pair of 600s at a
local shop here for $50 with cables. The problem I see though is that
they're 8 speed and my bike has a 7 ring spocket. That's only 7 speeds; but
EIGHT speed shifters. Thanks to my superior wit, I was able to notice the
difference right away. ALAS. Does that matter?

Only a little. If you have a nice clean cable and the derailleur pivots
are still tight, it should shift pretty well.

Quoted message said:

I don't know enough about it
to know what to buy. Right now i have 105 downtube shifters; a dura ace
front and a 105 rear. I also have an ultegra rear that I also bought used
and it didn't seem to be compatable with my setup.

If it's Ultegra then it should be OK with any 105 shifter.

Quoted message said:

I was under the
assumption that most shimano equipment was compatable; except for some older
DA stuff. If anyone can help i'd really appreciate it. If you need model
numbers I can get them.

Oh i'm also considering replacing my 105 cranks with some DA FC-7510s I saw
at the same place for $50. Does that sound like a good idea/deal? hah.

It's your money. I'd save it for things that matter more.

One thing you should know about old STI levers is that they often
fail when they get high mileage.

--Paul