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10sp cassette on 9s...
 

[Closed] 10sp cassette on 9sp hub - what spacer?

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[#9379312]

I'm upgrading my old 9sp road bike to 10 which I think means I need to put a spacer behind the casette. Do shimano cassettes come with the spacer? And if not, what size do I need?

Wheels are ancient bontrager race-lite currently on 9sp dura ace and I'm moveing to 10sp 105


 
Posted : 13/06/2017 12:02 pm
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It should work without one, but mine didn't:

http://singletrackworld.com/forum/topic/wtd-9-to-10-spee-cassette-spacer

I used the spacer in the link to resolve my issue.


 
Posted : 13/06/2017 1:01 pm
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er, iirc...

isn't there a difference between roadie 10spd, and mtb 10spd?

ie. roadie 10 cassettes are narrower than mtb 10 cassettes - which are the same width as 9spd.

the roadie10 cassettes are available in a size that an mtb may well consider 'adequate' - so we'll buy them, only to find they're not *quite* right... (i may or may not have found this out the hard way)

(i think is right, it certainly explains a few things...)

anyway, i'm not sure 10spd really counts as an upgrade for a road bike. it was sort of a short-lived dead end. imho, upgrade properly, to 11spd 105, or just get new(ish) Sora, which is cheap, back-dateable, and really really really good.


 
Posted : 13/06/2017 2:25 pm
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Yeah, I've got a complete 105 group in the spares box but the main reason for the switch is the realiseation that the 53/39 with 11-21 cassette whilst looking pro, is in actual fact quite rediculous given my (at best) modest ability!


 
Posted : 13/06/2017 3:26 pm
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edit - double post


 
Posted : 13/06/2017 3:44 pm
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The cassette will come with the correct spacer. Dura-Ace, Ultegra and 105 10 speed use a 1mm spacer, Tiagra doesn't. If you are fitting a used cassette and can't find the spacer [url= https://www.sjscycles.co.uk/cassettes/shimano-duraace-cs7800-cassette-spacer-t-10-mm-1z8-0700/ ]THIS[/url] is what you need.


 
Posted : 13/06/2017 4:12 pm