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Shimano SIS 9 speed compatibility

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Shimano SIS 9 speed compatibility

Old 08-18-22, 11:56 AM
  #26  
csport
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Originally Posted by BikeRider22 View Post
@csport

Thanks for the helpful response to the questions.

Do you know if these 9 speed shifters are indexed/SIS?

microSHIFT Down Tube Shifter Set, 9-Speed, Double/Triple, Shimano Compatible, Silver
https://www.modernbike.com/microshif...patible-silver

I have a number of friction shifters, but I want to upgrade to SIS if I can

Sunrace also has 9 speed shifters.
https://www.sjscycles.co.uk/gear-shi...-pair/?geoc=US

But, like so many websites, the SIS detail is not mentioned.
Sigh.
Microshift site says left friction, right indexed: https://www.microshift.com/models/sl-d09/
Same model as Modern Bike lists, SL-D09.

Sunrace does not mention anything, I think they are also left friction/right indexed as himespau thinks. Otherwise why mention 9 speed in the specs?
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Old 08-18-22, 12:13 PM
  #27  
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Originally Posted by csport View Post
Sunrace does not mention anything, I think they are also left friction/right indexed as himespau thinks. Otherwise why mention 9 speed in the specs?
Yeah, given that the advertisement linked in the post says "Speeds: R = 9 / L = Friction 3/2", I don't see how it could be anything but right indexed, left friction.
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Old 09-18-22, 08:53 PM
  #28  
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So, some news.

I finally went to swap out the components on this old road bike from the 70s

Miche 9 speed cassette
9 speed crankset/chainwheels
9 speed Front and rear derailleurs

If all that worked, I'd look into SIS shifters.

So I took off the 8 speed cassette

But the 9 speed cassette rubbed against the frame.

Very disappointing.

These same wheels have been used with an 8 speed cassette on this old road bike.
And a 10 speed cluster, on my Surly Cross Check.

The 9 speed Miche cassette went on the hub ok.

But the frame ended up being the compatabilty issue.

Originally, this bike came with a thinner 5 speed freewheel.
Probably 126 mm hub spacing.
That was widened for the newer, wider hubs/cassettes.

Surprise!

Who knew?

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Old 09-19-22, 11:24 AM
  #29  
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So the 8 speed cassette didn't rub, the 10 speed cassette didn't rub, but the 9 speed does? I mean that does make sense because the 9 speed cassette is ~1mm wider than than the 8 speed, and the 10 speed Shimano cassette is actually narrower than the 9 speed because the largest cog is dished in. Seems like the best course of action would be to run a 10 speed cassette. Didn't you say you already have the SL7900 shifters?

edit: Hold on one second! You said Miche 9 speed cassette- Are you using a Miche cassette that is meant for adapting a Shimano HG hub for use with Campagnolo drivetrains? These are wider than the Shimano 9 speed cassettes. See the Sheldon Brown cog spacing crib sheet. You need a Shimano/SRAM 9 speed cassette.

Last edited by icemilkcoffee; 09-19-22 at 11:33 AM.
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Old 09-19-22, 11:45 AM
  #30  
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As I mentioned:

These same wheels have been used with an 8 speed cassette on this old road bike.

And a 10 speed cluster, on my Surly Cross Check.

I only use Shimano and compatible

Pay attention eh!
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Old 09-19-22, 02:24 PM
  #31  
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Originally Posted by BikeRider22 View Post
As I mentioned:

These same wheels have been used with an 8 speed cassette on this old road bike.

And a 10 speed cluster, on my Surly Cross Check.

I only use Shimano and compatible

Pay attention eh!
Can you take some pictures of where it's rubbing? How much wider is the 9 speed cassette than the 8 speed cassette?
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Old 09-19-22, 04:12 PM
  #32  
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Originally Posted by BikeRider22 View Post
As I mentioned:

These same wheels have been used with an 8 speed cassette on this old road bike.

And a 10 speed cluster, on my Surly Cross Check.

I only use Shimano and compatible

Pay attention eh!
You might want to re-read the comment by icemilkcoffee immediately preceding yours - it was edited to add new info.

If icemilkcoffee is correct in saying your custom Michie cassette is wider than the Shimano-specified width for a 9-speed cassette, that may well be your problem.
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Old 09-22-22, 08:32 PM
  #33  
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Originally, this bike came with a thinner 5 speed freewheel.
Probably 126 mm hub spacing.
That was widened for the newer, wider hubs/cassettes.
A 5 speed freewheel? That's 120 spacing, not even 126. Has this frame been spread?

And what worked on the Cross Check is irrelevant here. Some combos are just not meant to be. I know I've done some myself but I also have backed away from some things that haven't worked.
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