I am having problems getting Sachs 5000 levers to index correctly with
an 8 speed Shimano Ultegra cassette. As Colorado Cyclist has a kit that
will put Campy spacers in a Shimano cassette, and the Sachs Ergo levers
are basically campy stuff anyway, would I solve the problem by going
with the Campy spacer conversion kit? I had the Sachs levers on my
tandem with a Sachs/Aris 8 speed freewheel and they worked fine.
Help!
Thanks.
LR
I have done several conversions just as you suggest, respacing a Shimano
8spd cogset with Wheels Manuf. Shimano-to-Campy spacer conversion sets,
for use with their Sachs shifting systems. It works great.
Mark McMaster
MMc...@ix.netcom.com
Ready for the silly part? I was building a cross bike, and wanted to use
Sachs Ergo levers with a Sachs mountain rear derailleur, and it wouldn't
work.
Jeff
In article <3605815E...@ice.net>,
lrot...@ice.net wrote:
> What is Campy 8 speed cog spacing? Shimano is 3.0, Sachs/Aris
> freewheels are 3.2.
>
> I am having problems getting Sachs 5000 levers to index correctly with
> an 8 speed Shimano Ultegra cassette. As Colorado Cyclist has a kit that
> will put Campy spacers in a Shimano cassette, and the Sachs Ergo levers
> are basically campy stuff anyway, would I solve the problem by going
> with the Campy spacer conversion kit? I had the Sachs levers on my
> tandem with a Sachs/Aris 8 speed freewheel and they worked fine.
>
> Help!
>
> Thanks.
>
> LR
>
>
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The situation is a little more complicated than your first statement.
Sachs road componentry is shimano compatible in the shifters and
derailleurs. What this means is the sachs derailleurs move the chain
the same amount for a given cable pull as the shimano derailleurs. Thus
you could use shimano STI with a sachs rear derailleur or vice versa.
The ergo levers, however, pull a different amount of cable for each
click because the sachs FWs have a different spacing than shimano. The
crucial thing to match is the rear cassette/FW spacing and the shifter.
I am surprised the Sachs MTB and road stuff did not work together.
Baird
To make it even more complicated: the cog spacing on a Campi is 3.2 mm
center-to-center. For Shimano it's 3.0 mm c-t-c. For Sachs it's 3.1 mm.
So you see you cannot really mix anything, and yet it is all so close
together that you can generally get a Shimano to shift a Campi rear
wheel, a Campi to shift a Shimano rear wheel, Either to shift a Sachs.
You can mix Sachs and Shimano Ergo/STI and rear derailleurs but not
Campi and Sachs. To make it even more confusing, Ultegra and 105 is
different from DuraAce.
The best bet to guarantee everything working properly for the longest
period of time is to match components and not mix them.
It's not that complicated, because the spacer thickness is only half the
story (by the way, you got the Sachs and Campy thicknesses backwards).
Shimano spacing is 1.8mm cogs with 3.0mm spacers, 4.8mm
cog-center-to-cog-center. Sachs spacing is 1.8mm cogs with 3.2mm
spacers, 5.0mm cog-center-to-cog-center. Campy spacing is 1.9mm cogs
with 3.1mm spacers, 5.0mm cog-center-to-cog-center. Both Sachs and
Campy have the same cog spacing center-to-center (which is the dimension
that matters). Didn't I correct you on all this just recently?
> So you see you cannot really mix anything, and yet it is all so close
> together that you can generally get a Shimano to shift a Campi rear
> wheel, a Campi to shift a Shimano rear wheel, Either to shift a Sachs.
> You can mix Sachs and Shimano Ergo/STI and rear derailleurs but not
> Campi and Sachs. To make it even more confusing, Ultegra and 105 is
> different from DuraAce.
Dura-Ace was different from the rest of the Shimano groups only in
shifters and the derailleurs (not the hubs or cogsets), and only for
6,7&8spd. With the 9spd groups Dura-Ace is now completely
interchangeable with Ultegra and 105.
> The best bet to guarantee everything working properly for the longest
> period of time is to match components and not mix them.
That's what the manufacturers and dealers would like us to believe.
Mark McMaster
MMc...@ix.netcom.com
> To make it even more complicated: the cog spacing on a Campi is 3.2 mm
> center-to-center. For Shimano it's 3.0 mm c-t-c. For Sachs it's 3.1 mm.
Nope, those are the spacer thicknesses. Everybody's standard 7-speed spacing
is 5.0 mm c-to-c, as is Campagnolo/Sachs 8-speed spacing.
Shimano 8-speed spacing is 4.8 mm c-to-c.
There's more detail on this on my Web site (didja know I have a Web site?) at:
http://www.sheldonbrown.com/k7.html#spacing
> ...To make it even more confusing, Ultegra and 105 is
> different from DuraAce.
This has not been so since the 1996 model year.
> The best bet to guarantee everything working properly for the longest
> period of time is to match components and not mix them.
That's no fun!
Sheldon "Happily Riding My 9-speed Sram ESP Setup" Brown
Newtonville, Massachusetts
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