Results 1 to 7 of 7

Thread: Educate me

  1. #1
    mtbr member
    Reputation: DavidR8's Avatar
    Join Date
    Aug 2018
    Posts
    68

    Educate me

    Why are some cranksets designated 9 spd or 10 spd.
    Is it because of the difference between 9 and 10 spd chains?


    Sent from my iPhone using Tapatalk

  2. #2
    mtbr member
    Reputation:
    Join Date
    Oct 2015
    Posts
    1,122
    If they come with chainrings then possibly because of the chain width differences but also because of the chainline.

  3. #3
    mtbr member
    Reputation:
    Join Date
    Feb 2006
    Posts
    1,630
    My experience was that you could use a 9 speed chain on a 10 speed ring (Shimano).

  4. #4
    since 4/10/2009
    Reputation: Harold's Avatar
    Join Date
    Dec 2003
    Posts
    24,699
    Quote Originally Posted by DavidR8 View Post
    Why are some cranksets designated 9 spd or 10 spd.
    Is it because of the difference between 9 and 10 spd chains?


    Sent from my iPhone using Tapatalk
    yes and no

    chain width hasn't changed much after 10spd, but from 9-10spd the chain still did narrow a tiny bit.

    On 1x chainrings, "speed" doesn't really matter at all, and it only matters "a little bit" for shifty chainrings. Shifting up front is a lot less elegant than shifting the rear derailleur, so there's a bit more wiggle room there.

    There are a lot of "off label" combinations that will work. For example, my commute bike has a 10spd mtb rear end, but my crankset and front derailleur are labeled "11spd". Everything works fine, since I have shifters that are made for this combination.

    Chainline didn't really change because of drivetrain changes. It changed for other reasons, mostly because of changes to bb standards that were occurring at a similar time. Along with all the bb changes, hub spacing and tire width changes started to pop up, too. Boost hub spacing came with a change to chainline, too. But none of that had anything directly to do with changes from 9 to 10spd or anything like that.

  5. #5
    mtbr member
    Reputation: DavidR8's Avatar
    Join Date
    Aug 2018
    Posts
    68
    Thanks all.
    I have an SLX hollowtech 2 crankset that is spec’ed 10 spd. I plan to use it for my 1x conversion with a N-W chainring so any chain specifics are irrelevant. Right?


    Sent from my iPhone using Tapatalk

  6. #6
    since 4/10/2009
    Reputation: Harold's Avatar
    Join Date
    Dec 2003
    Posts
    24,699
    Quote Originally Posted by DavidR8 View Post
    Thanks all.
    I have an SLX hollowtech 2 crankset that is spec’ed 10 spd. I plan to use it for my 1x conversion with a N-W chainring so any chain specifics are irrelevant. Right?


    Sent from my iPhone using Tapatalk
    Correct.

    Sent from my VS995 using Tapatalk

  7. #7
    mtbr member
    Reputation: DavidR8's Avatar
    Join Date
    Aug 2018
    Posts
    68
    Thanks for confirming my thinking @Harold


    Sent from my iPhone using Tapatalk

Similar Threads

  1. Educate Me.
    By De La Pena in forum New Mexico
    Replies: 18
    Last Post: 12-15-2011, 10:56 AM
  2. Replies: 10
    Last Post: 09-14-2011, 03:57 AM
  3. Educate new commuters
    By BertoManfred in forum Commuting
    Replies: 2
    Last Post: 09-05-2011, 06:11 PM
  4. Care to educate me on bars?
    By TwoNin9r in forum 29er Bikes
    Replies: 7
    Last Post: 04-18-2011, 05:36 PM
  5. Educate me please
    By Starbuck50 in forum Eastern Canada
    Replies: 208
    Last Post: 01-10-2011, 08:25 AM

Members who have read this thread: 76

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

THE SITE

ABOUT MTBR

VISIT US AT

© Copyright 2019 VerticalScope Inc. All rights reserved.