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140mm rotors on R5 Disc

Last post 09-12-2018 2:31 PM by Xriss. 6 replies.
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  • 07-05-2018 6:09 PM

    140mm rotors on R5 Disc

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    My R5 currently has 160mm rotors, but I’m considering sizing down to 140mm. Would it simply be a matter of removing the caliper adapters front and rear? Does the front caliper require an adapter, even for 140mm? Thanks again, forum.
    2017 R5 Disc

  • 07-05-2018 7:57 PM In reply to

    • Kookie
    • Top 50 Contributor
    • Joined on 02-04-2012
    • Toronto
    • Posts 438

    Re: 140mm rotors on R5 Disc

    Reply Contact
    Not 100% sure but I think you just have to flip over the mount-adapter and re-install the calipers. You should see an arrow pointing one way for 160mm and flip it the other way for 140mm.
    2017 Cervelo S5 SRAM eTap
    2018 Cervelo R5 Classics Edition Limited Frameset

  • 07-06-2018 8:30 AM In reply to

    • jakes
    • Top 500 Contributor
    • Joined on 03-05-2014
    • Posts 52

    Re: 140mm rotors on R5 Disc

    Reply Contact
    That's correct. Flip the adapter so it positions the mounting holes for the caliper lower on the fork and rearward on the chainstay. The adapters are marked so it should be pretty straightforward.
    Jakub Macel
    Digital Communication Advocate
    Cervelo

  • 08-22-2018 7:26 AM In reply to

    • Remy
    • Not Ranked
    • Joined on 06-20-2018
    • Posts 3

    Re: 140mm rotors on R5 Disc

    Reply Contact

     hello ... are you going to 140mm in front and rear wheel? ... or just rear? thx.

  • 09-11-2018 6:53 PM In reply to

    Re: 140mm rotors on R5 Disc

    Reply Contact
    I was thinking both front and rear.
    2017 R5 Disc

  • 09-12-2018 12:09 AM In reply to

    Re: 140mm rotors on R5 Disc

    Reply Contact
    Assuming the R5 and S3D has the same mount, I can't figure out the rear. The adapter is longer than the caliper and if I turn it around, the screw holes doesn't much up.

  • 09-12-2018 2:31 PM In reply to

    • Xriss
    • Not Ranked
    • Joined on 09-02-2017
    • Zurich, Switzerland
    • Posts 17

    Re: 140mm rotors on R5 Disc

    Reply Contact
    Only front adapters have to be turned if going from 160mm to 140mm or vice versa. Rear adapter just has to be renoved to go to 140mm from 160mm.
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