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  1. #1
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    brake pad and rotor contact

    when pads contact the rotor, should the pads be dead center of the braking surface on the rotor? i notice that the bottom of the pad touches the surface of the rotor fine, but the top is going above the rotor surface a wee bit. is that an issue?

  2. #2
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    Quote Originally Posted by crapaccount
    when pads contact the rotor, should the pads be dead center of the braking surface on the rotor? i notice that the bottom of the pad touches the surface of the rotor fine, but the top is going above the rotor surface a wee bit. is that an issue?
    I believe the ideal is to have both pads make contact with the rotor at the same time. Also, as you squeeze the lever if the rotor move off-center then you probably want to adjust the caliper position for optimal braking performance.

  3. #3
    Meh.
    Reputation: XSL_WiLL's Avatar
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    That's not what the OP was asking.

    Having pad hang over the top of the rotor will wear a grove into the pad. Eventually pad wear may become so severe that the lips of the pad touch before any pressure is applied to the rotor. If the bottom of the pad contacts the rotor "arms" this will also exhibit uneven pad wear. This may lead to issues with vibration, stuttering, noise, etc.

    What rotor are you using? And with what caliper?

  4. #4
    wyrd bi ful rd
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    Are you using any shims on the caliper ... I presume they are post mount ... Be interesting to know what size rotor you are using ...

  5. #5
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    well i was seeing how my formula brakes ride on my hayes 7 inch rotors. i have the hayes post mount adaptor from my old hayes brakes on the fork, and notice that the pad on the formula brake is a wee bit higher than the rotor. the bottom of the pad is fine, and there's plenty of space on the braking surface (doesn't hit the rotor arms).

    i wouldn't think the adaptor for formula is any different than any other 7" adaptor for any standard 7" rotor. plus the braking surface on the hayes is big. no shims (that would make the pad even more higher)...so wonder if the formula adaptor is actually trimmed more than the hayes?

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