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  1. #1
    mtbr member
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    Apr 2005
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    Hope Issues with >160mm rotor on a QR fork?

    Sorry, guys, tried using search but couldn't find anything...

    Any issues with using anything bigger than a 6 inch rotor on a QR fork? Are there differences for this application in terms of post compared to IS mount?

    Appreciate any feedback, thanks all!

  2. #2
    squish is good
    Reputation: Clutchman83's Avatar
    Join Date
    Apr 2006
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    4,933
    The caliper mount shouldn't have a huge impact on rotor. The angle of the axle dropouts is more important. Vertical dropouts are more liable to result in the axle being yanked out as opposed to more horizontal dropouts. IME 7" rotors are usually okay on newer forks but 8" is probably a bad idea.
    Bike good, work bad.

  3. #3
    mtbr member
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    It really depends on the fork. Manufacturers set max rotor size that are usually available on their website. Example RS doesn't recommend larger than 185mm on the SID WC, but you could put a 210 on a Recon.

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