Schram cassettes

On Friday, May 14, 2021 at 5:34:01 AM UTC-7, AMuzi wrote:
On 5/13/2021 10:22 PM, Mark J. wrote:
On 5/13/2021 6:11 PM, AMuzi wrote:
On 5/13/2021 5:41 PM, Tom Kunich wrote:
On Tuesday, May 11, 2021 at 4:10:48 PM UTC-7, AMuzi wrote:
On 5/11/2021 5:42 PM, Tom Kunich wrote:
On Tuesday, May 11, 2021 at 12:23:39 PM UTC-7, AMuzi
wrote:
On 5/11/2021 1:18 PM, Mark cleary wrote:
I have never been a Schram person also Shimano. I
notice that Schram 11 speed cassettes are cheaper and
more easily had these days. I have always used a full
shimano drivetrain and shifting for me has always
been good. My question is if a schram cassette 11 sp.
shifts as well as the Shimano cassette on an all
shimano drivetrain. I realize they are compatible but
is there any downside on the performance?/ I am not
worried about price if peformance is better on
Shimano I will gladly pay. My instincts tell me a all
Shimano will be that much better?
Deacon mark

Fits and shifts the same. Ditto SunRace, IRD and S-Ride.
Suntour ROC seem to be scarce or gone but they were also
fine at a great price last year.

Note fancy carriers, rivetted carrier assemblies,
one-piece-milled aluminum designs etc may be lighter but
won't shift any differently when new. Although expensive,
aluminum sprockets wear faster.
Maybe it was back at 8 and 9 speeds but isn't the
spacing of SRAM cassettes spaced "progressively"?

Suntour was spaced that way.

For 8, 10 11, 12 Campagnolo is spaced differently from
Shimnao/SRAM/SunRace etc. Oddly nines are just nines-
either cassette format works well in both systems.

So Shimano has different spacing between the cogs of the
8's 9's and 10's? Campy is all the same from 8 to 10.

AFAIK all Shimano, SRAM and Campagnolo cassettes are
evenly spaced. That is to say the distance between an 11
and a 12 is the same space as between a 28 and a 32 on the
same cassette.

I don't think that's exactly true, at least not for Campy
10s, see the link below. Though maybe the different-width
spacers combine with shaped cogs to result in equal spacing
between the cogs at the outer edge / teeth.

http://www.rumplefyke.com/downloads/centaursp.jpg
(First example I could find, but I've got the same image
downloaded direct from campagnolo.com)

Had to use that diagram after I cleaned a loose Campy
cassette and realized belatedly that the spacers were not
all the same as I fished them out of solvent. They do,
IIRC, have identifying marks distinguishing them.

I think the 9sp Campys had all spacers the same, though.

Mark J.

Yes sprocket thickness and shape requires different spacers
to attain even sprocket spacing in Campagnolo Ten cassettes.
BTW an elegant design, in that the low gear overhangs the
base of the cassette body. Clever!
Rather than elegant I would say it was an easy fix for a difficult problem.

On 5/14/2021 5:33 AM, AMuzi wrote:
On 5/13/2021 10:22 PM, Mark J. wrote:
On 5/13/2021 6:11 PM, AMuzi wrote:
On 5/13/2021 5:41 PM, Tom Kunich wrote:
On Tuesday, May 11, 2021 at 4:10:48 PM UTC-7, AMuzi wrote:
On 5/11/2021 5:42 PM, Tom Kunich wrote:
On Tuesday, May 11, 2021 at 12:23:39 PM UTC-7, AMuzi
wrote:
On 5/11/2021 1:18 PM, Mark cleary wrote:
I have never been a Schram person also Shimano. I
notice that Schram 11 speed cassettes are cheaper and
more easily had these days. I have always used a full
shimano drivetrain and shifting for me has always
been good. My question is if a schram cassette 11 sp.
shifts as well as the Shimano cassette on an all
shimano drivetrain. I realize they are compatible but
is there any downside on the performance?/ I am not
worried about price if peformance is better on
Shimano I will gladly pay. My instincts tell me a all
Shimano will be that much better?
Deacon mark

Fits and shifts the same. Ditto SunRace, IRD and S-Ride.
Suntour ROC seem to be scarce or gone but they were also
fine at a great price last year.

Note fancy carriers, rivetted carrier assemblies,
one-piece-milled aluminum designs etc may be lighter but
won't shift any differently when new. Although expensive,
aluminum sprockets wear faster.
Maybe it was back at 8 and 9 speeds but isn't the
spacing of SRAM cassettes spaced "progressively"?

Suntour was spaced that way.

For 8, 10 11, 12 Campagnolo is spaced differently from
Shimnao/SRAM/SunRace etc. Oddly nines are just nines-
either cassette format works well in both systems.

So Shimano has different spacing between the cogs of the
8's 9's and 10's? Campy is all the same from 8 to 10.

AFAIK all Shimano, SRAM and Campagnolo cassettes are
evenly spaced. That is to say the distance between an 11
and a 12 is the same space as between a 28 and a 32 on the
same cassette.

I don't think that's exactly true, at least not for Campy
10s, see the link below.Â* Though maybe the different-width
spacers combine with shaped cogs to result in equal spacing
between the cogs at the outer edge / teeth.

http://www.rumplefyke.com/downloads/centaursp.jpg
(First example I could find, but I've got the same image
downloaded direct from campagnolo.com)

Had to use that diagram after I cleaned a loose Campy
cassette and realized belatedly that the spacers were not
all the same as I fished them out of solvent.Â* They do,
IIRC, have identifying marks distinguishing them.

I think the 9sp Campys had all spacers the same, though.

Mark J.


Yes sprocket thickness and shape requires different spacers to attain
even sprocket spacing in Campagnolo Ten cassettes. BTW an elegant
design, in that the low gear overhangs the base of the cassette body.
Clever!

That's definitely the case with the "P" spacer in the diagram. The
difference between the "Q" and "O" spacers, though, doesn't seem to fit
that explanation. IIRC from hand assembly, the relevant cogs there are
flat, not dished like the biggest cog.

Mark J.