Forks and Disc Brake variations.

saladfunky
saladfunky Posts: 130
edited July 2017 in MTB workshop & tech
Hi, got an old Suntour XCM Fork and want to fit a Manitou Marvel Fork instead. Brakes are Quad QM-5 mechanical and I don't know if they will fit these forks. The fittings are different on the 2 forks. Are there adapters that would allow these brakes to fit these forks?
thanks
Chris
Trek Emonda and Kiron Scandium on the road and Cube ltd Team for the rest .Also a retired Holdsworth Professional. Love Cycling!!

Comments

  • cooldad
    cooldad Posts: 32,599
    Presumably the Suntour are IS and the Manitou post mount?

    9ailL.jpg

    Depending on whether the brakes are IS or post mount, you'll need the right adapters.

    Like these

    http://www.tiso.com/alpn-shim-1051664/s ... im-1051664
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  • cooldad
    cooldad Posts: 32,599
    If they are QMD look like post mount, so you might not need adapters, depending on rotor size.

    https://www.amazon.co.uk/Quad-QMD-5-Cab ... B004XVOTCM
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  • saladfunky
    saladfunky Posts: 130
    Thanks for replies, the forks are IS but the brakes look like they'd fit post mount. But might still need an adapter or spacer as the lower mount point on the Manitou fork is short compared to the top. Presume these can be purchased too?
    Chris
    Trek Emonda and Kiron Scandium on the road and Cube ltd Team for the rest .Also a retired Holdsworth Professional. Love Cycling!!
  • whyamihere
    whyamihere Posts: 7,715
    Depends on the rotor size. If you're using a 160mm diameter rotor, it will fit directly. If not, then yes, you will need an adaptor.
  • saladfunky
    saladfunky Posts: 130
    Thanks All. . .Just need an adapter then. guess these easy enough to find. I wander if it is easy to get the right one? Any tips anyone?

    cheers
    Chris
    Trek Emonda and Kiron Scandium on the road and Cube ltd Team for the rest .Also a retired Holdsworth Professional. Love Cycling!!
  • whyamihere
    whyamihere Posts: 7,715
    Once again, it depends on the rotor size. Let us know what the rotor size is and we can help more easily.
  • cooldad
    cooldad Posts: 32,599
    saladfunky wrote:
    Thanks for replies, the forks are IS but the brakes look like they'd fit post mount. But might still need an adapter or spacer as the lower mount point on the Manitou fork is short compared to the top. Presume these can be purchased too?
    Chris

    Are you sure? AFAIK Marvels are post mount and I would expect old Suntours to be IS, depending on how old old is.
    Have a look at the pictures and you'll see that the lower mount is always shorter. It's normal.
    whyamihere wrote:
    Depends on the rotor size. If you're using a 160mm diameter rotor, it will fit directly. If not, then yes, you will need an adaptor.

    A post mount brake and IS fork (or vice versa) will always need an adaptor.
    saladfunky wrote:
    Thanks All. . .Just need an adapter then. guess these easy enough to find. I wander if it is easy to get the right one? Any tips anyone?

    cheers
    Chris

    Make sure you have your IS/post bits correct, and advise rotor size.
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  • whyamihere
    whyamihere Posts: 7,715
    cooldad wrote:
    whyamihere wrote:
    Depends on the rotor size. If you're using a 160mm diameter rotor, it will fit directly. If not, then yes, you will need an adaptor.

    A post mount brake and IS fork (or vice versa) will always need an adaptor.
    I read that as being the old fork is IS - Manitou have never (AFAIK) done an IS mount fork.
  • cooldad
    cooldad Posts: 32,599
    Could be. The last Manitous I had had canti mounts.

    The OP is a bit vague.
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  • 02gf74
    02gf74 Posts: 1,171
    I believe adapters are available to fit IS brakes to post mount forks and vice versa for all disc diameters.

    The one exception is IS brake to post with 160mm rotor.
  • cobba
    cobba Posts: 282
    02GF74 wrote:
    The one exception is IS brake to post with 160mm rotor.

    It can be done with some IS calipers on some PM forks but some fork/brake combos won't work.

    http://clee-cycles.co.uk/P1043/product