Yet Another Cycling Forum

General Category => The Knowledge => Topic started by: WCTD on May 04, 2018, 09:33:43 am

Title: Cassette Question...
Post by: WCTD on May 04, 2018, 09:33:43 am
Do all 10 speed cassettes require a spacer, It's a Shimano 105 that i'm planning to fit.
Title: Re: Cassette Question...
Post by: Feanor on May 04, 2018, 10:10:34 am
AFAIK, all most Shimano 10-spd cassettes come with a spacer, which shims it up to the same width as a 9-spd, and is required on Shimano 9/10 spd hubs.
There are some '10 speed' hubs which don't require the spacer.
See the notes in the second link belpw.

I have come across cheaper Tiagra-level ones which do *not* use a spacer:
https://yacf.co.uk/forum/index.php?topic=97081.0

See also the note on spacers on the last page of this document:
http://si.shimano.com/pdfs/dm/DM-CS0002-00-ENG.pdf
Title: Re: Cassette Question...
Post by: quixoticgeek on May 04, 2018, 12:06:51 pm

I have a tiagra 11-34 cassette, I put a spacer on as everyone said it needed it, but in reality, it had to be taken off to get the gears to shift properly.

So I think it may be a case of "Depends"

J
Title: Re: Cassette Question...
Post by: Torslanda on May 04, 2018, 06:26:37 pm
If you're freehub takes 11 speed (e.g. 105 5800) and you fit anything less you will need a spacer.

If your freehub takes 8/9/10 speed (e.g. 105 -> 5700) you will NOT need a spacer for 8 or 9 speed and you MAY need a 0.5mm spacer for 10 speed.

Reasons as follows - and NO I'm not getting the micrometer out -
8 speed & 9 speed cassettes are the same width/thickness/stack height or what have you.
10 speed cassettes are a teeny bit narrower. (Hence the 0.5mm spacer)
11 speed cassettes are '10 plus one'. (Approx 1.5mm give or take)
Therefore 11 speed cassettes won't fit 8/9/10 freehubs.
8/9/10 cassettes need a spacer on 11 speed freehubs.
Bottom line is if your cassette moves after the lockring is tight you should've fitted a spacer.

In the words of the immortal Douglas N. Adams, 'Read it through again and you'll get it'.
Title: Re: Cassette Question...
Post by: Brucey on May 04, 2018, 09:22:08 pm
yup that is it...

cheers
Title: Re: Cassette Question...
Post by: ElyDave on May 04, 2018, 10:31:48 pm
Shimano r500 wheel, shimano 10s cassette needs a spacer, SRAM 10s cassette does not.

Tension needs a bit of adjustment between the two for indexing. I think the difference is in the three cogs on the spider, the recess at the back seems deeper on shimano
Title: Re: Cassette Question...
Post by: Torslanda on May 04, 2018, 10:49:29 pm
SRAM machine the spider to include the shim. Because it's always needed so why bother to make it separate?
Title: Re: Cassette Question...
Post by: WCTD on May 05, 2018, 06:53:38 am
Thanks all  :thumbsup:
Title: Re: Cassette Question...
Post by: ElyDave on May 05, 2018, 09:45:37 am
SRAM machine the spider to include the shim. Because it's always needed so why bother to make it separate?

bloody hell! logic being applied in the world of cycling
Title: Re: Cassette Question...
Post by: Torslanda on May 05, 2018, 10:10:40 am
Now don't get giddy . . .  ;D
Title: Re: Cassette Question...
Post by: sojournermike on May 05, 2018, 04:18:08 pm
An exception being replacing the road 10 speed on an 11 speed freebub and deciding to remove the spacer in order to avoid only having 1 ring iof the lock ring thread actually threaded. I presume 10 speed mtb is different than road...