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PostPosted: Tue Feb 13, 2018 8:51 pm 
Dirt Disciple

Joined: Wed Dec 11, 2013 9:41 pm
Posts: 76
There are several posts everywhere that try to explain how to make it possible, but no one convinced me. I'm very motivated as I have a pair of Shamals while looking for a nice Shimano 9 speed wheelset ...
After weeks thinking on that topic, It came to me an idea how to make it happen. Let me explain it here before staring the action, in case you see this not feasible ;(

Here the differences, from Sheldon Brown's site:

Center-to-center Spacing Spacing Sprocket Spacer Thickness Total Width
Campagnolo 5.0 mm 1.9 mm 3.1 mm 36.9 mm
8-speed
Shimano 4.34 mm 1.78 mm 2.56 mm 36.5 mm
9-speed

So I only need to buy 2 Campy 8 speed cassettes; take 9 coogs; sand them from 1.9 to 1.78 ; and do the same with the plastic spacers, from 3.1 to 2.56 mm.

Could that work ??


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PostPosted: Tue Feb 13, 2018 10:19 pm 
Dirt Disciple

Joined: Wed Sep 07, 2011 6:27 pm
Posts: 44
Location: Hertford
I have an ambrosio 9 speed shimano tooth spacing cassette with a campagnolo splined body on my old campag kysyriums i run with a shimano groupset.
Would something like this be easier than sanding spacers down?

Edit to add that i just googled it and they only seem to do ten speed campag cassete widths now.


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PostPosted: Wed Feb 14, 2018 10:28 am 
Retro Guru

Joined: Sun Apr 12, 2015 7:37 pm
Posts: 332
Let me know if you need any campagnolo 8 speed cassettes. I have some spare I will sell for a competitive price


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PostPosted: Sun Feb 18, 2018 9:02 pm 
Dirt Disciple

Joined: Wed Dec 11, 2013 9:41 pm
Posts: 76
Almost got it ...

I bought a 9 speed shimano cassette , just for the spacers, (these are thinner than 8 spd campy , much closer to the shimano 9 speed ones) and a spare campy 8 speed cogg (I already had a 8 sp campy cassette).

Sanded a little bit the new spacers and tried...... bad, as I sanded too much and not all spacers equally .

Not all is lost ... I created myself some paper washers (regular 80 gr blank sheet;) and put in addition to each of the spacers.... good!. Not really perfect shifting yet , but almost. Now I believe adding or removing one more paper washer here or there will get it pretty smooth.

Not a solution that will last for 10 years, but for an occassional Sunday rider like me it's a good way to make use of an older&nice Shamal I've not been able to sell for a decent price ;(

I realized it's not the right place for this topic, but I do nt see how can I move it, sorry


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PostPosted: Mon Feb 19, 2018 11:37 am 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
Posts: 8860
Location: New Forest, UK
Note that Campag spacers are not all the same thickness - it varys across the cassette a little.


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PostPosted: Mon Feb 19, 2018 12:06 pm 
Dirt Disciple

Joined: Wed Dec 11, 2013 9:41 pm
Posts: 76
8 speed as well ??


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PostPosted: Tue Feb 20, 2018 1:08 pm 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
Posts: 8860
Location: New Forest, UK
Not sure about 8! I think they may be the same, average 5.0mm.

Similarly Shimano actually pulls a bit more cable on the first click (from top) to take up a little slack in the cable as it's intended that the mech sits fully on the stop in top year.


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