12 speed chain on 11 speed cassette?

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Cattie
Posts: 25
Joined: Fri Jul 15, 2011 8:52 am

by Cattie

Will it work? For example Shimano XTR or Campy 12 speed chain on a DuraAce 9100 cassette.

12 Speed chains have a smaller width and I hope it could be beneficial at both ends of the cassette.

alcatraz
Posts: 4064
Joined: Mon Aug 29, 2016 11:19 am

by alcatraz

What problem are you looking to improve?

Narrower chains have previously been compatible as long as the inner width stayed the same. It's possible that a narrower inner width is ok with certain chainrings/cassettes/pulley wheels but not all.

Also you need to be careful about not letting the chain fit between the chainrings = safety issue.

With sram there is some conflicting info. It's said their new 12s chains aren't like the old ones but KMC is claiming their chains to be compatible with all brands (if I remember correctly). Someone must be mistaken. It deserves more looking into before buying.

by Weenie


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bruno2000
Posts: 1289
Joined: Fri Jun 17, 2005 4:11 pm

by bruno2000

Why on earth would you want to use a 12spd chain on an 11spd cassette?

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JayDee81
Posts: 403
Joined: Mon Jan 07, 2019 10:45 pm
Location: Czech Republic

by JayDee81

Has anyone tried this? I am asking because I want to test a PM on my MTB on a trainer, compare it against the trainer, but I don't have XD driver for the trainer. There is no other way how I could compare a MTB PM to the PM on my road bike.
Technically all I need is that some of the gears in the middle of the cassette fits the chain and I can use ERG mode for the test without any shifting.

DanielNorway
Posts: 219
Joined: Sun Jul 15, 2018 2:01 pm

by DanielNorway

JayDee81: Yes, this works. Tested my MTB w/Eagle drivetrain on trainer with 11spd Shimano road cassette.
Other option is to buy 12spd NX/SX/Sunringle-cassette for shimano freehub.

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JayDee81
Posts: 403
Joined: Mon Jan 07, 2019 10:45 pm
Location: Czech Republic

by JayDee81

DanielNorway wrote:
Thu Jan 07, 2021 2:03 pm
JayDee81: Yes, this works. Tested my MTB w/Eagle drivetrain on trainer with 11spd Shimano road cassette.
Thanks. That's exactly my case.

Dronfield
Posts: 30
Joined: Sun Apr 05, 2020 9:43 pm
Location: London, UK

by Dronfield

This thread should help....

viewtopic.php?f=3&t=159526

by Weenie


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