Bicycle cassette (rear chainrings) standards - article comments

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To prevent article pages from being miles long, but preserve all the useful questions and answers provided over time, I've decided to copy/paste the website comments to the forum - and "move" further discussions here.

These are the comments from the article:
Bicycle cassette (rear chainrings) standards

This topic is closed for further replies.

If you can't find the answer to your question in this thread, please open a separate thread with your question/problem, in an appropriate forum section (this is the Drivetrain section).

Relja
 
Last edited:
  1. Tim mi
    17/08/2019 at 06:46
    This is very helpful, thank you.
    We have added links to your site.
    Cheers!
    Velo76.com
  2. 1c16580b2fb43a9fec023bf939e663c2.jpg

    Nick Sutton
    22/07/2020 at 05:01
    Thank you so much. All of the size variations together in one place. I am drawing in CAD for my own bicycle construction project and this little nugget was just what I needed.
    Nick
  3. 47a8e7a416cc3b949fcc6de54939c953.jpg

    James E Estelle
    21/08/2020 at 00:26
    Could you add the dimensions for Shimano 12 speed MTB to table 1?
  4. 20f25bb8f56fcf3b6425bddb3c2afd60.jpg

    Ko
    26/11/2020 at 19:14
    ‘Spacer thickness’ means ‘Thickness of spacer groove’?
    Sorry I am not good at english.
    If you didn’t mean it, how can I know the thickness, width and length of spacer groove ‘FH-R7070’ ?
    Additional, I want to know the thickness of crank grooves
    Thank you
    • 3fd0d771d754ced79ca6b702635900b5.jpg

      Relja
      27/11/2020 at 10:31
      I mean “thickness” as in “how much space it takes on the freehub”. Looking at the dimension going from the wheel, towards the outside of the bicycle.
  5. 25f08d4c5a82b1c1a911508aa7ca7cd2.jpg

    Juan
    06/12/2020 at 14:41
    Hi,
    If I want to mount am 8s Campy cassette, how many spacers should I use in the standard campy free hub? maybe you could help me with that… Thanks!
 
  1. Max Mertins
    02/05/2021 at 22:25
    Hi,
    I bought a wheel on the flee market and the cassette has 8 splines with equal distances. Is it an old campa 7 speed ?
    thanks and greetings
    max
  2. 9fc7f7df4c3f066af81ef5f4eb2500fe.jpg

    Alain
    30/10/2021 at 19:08
    Hello
    Shimano MTB and ROAD are the same
    Cassette pitch is 3.78 mm
    Sprocket thickness is 1.60 mm
    Spacer thickness is 2.18 mm
    See yourself on Shimano pdf exploded views at shimano.docs
  3. 9fc7f7df4c3f066af81ef5f4eb2500fe.jpg

    Alain
    30/10/2021 at 19:29
    Link for the shimano docs
    https://si.shimano.com/#/
    Link for the XT 8000 cassette
    https://si.shimano.com/#/fr/EV/CS-M8000
    • 3fd0d771d754ced79ca6b702635900b5.jpg

      Relja
      30/10/2021 at 19:34
      I couldn’t find where Shimano states the dimensions and cassette pitch.
      Or at least admits that 11-speed road and MTB cassettes can be mix-matched (i.e. that they are compatible) – which seems to be the case in practice, at least in my experience.
  4. 9fc7f7df4c3f066af81ef5f4eb2500fe.jpg

    Alain
    30/10/2021 at 19:39
    On the bottom of all the shimano pdf cassette (link on my last comment) there is the parts and on these parts the spacer thickness is indicated.
    • 3fd0d771d754ced79ca6b702635900b5.jpg

      Relja
      30/10/2021 at 20:12
      Yes, the spacer thickness is specified and that is the same width.
      Edit: I’ve updated the article by adding a link with more details, since editing the calculated spacer thickness doesn’t tell the whole story in my opinion and because an 11-speed MTB cassette will not lock on an 11-speed road freehub without an additional spacer.
  5. 9fc7f7df4c3f066af81ef5f4eb2500fe.jpg

    Alain
    30/10/2021 at 19:43
    Sorry
    on my first comment i have forgeted to say that its for the shimano 11 speed cassette
 
This topic is closed for further replies.

If you can't find the answer to your question in this thread, please open a separate thread with your question/problem, in an appropriate forum section (this is the Drivetrain section).

Relja
 
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