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  1. #1
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    New to discs. Please help (warped rotor and other questions)

    Hi guys,

    Just joined this forum and loving it so far...I recently picked up a Giant Iguana Disc (used from a friend) and I love the brakes (Avid Juicy Three), but I have a few questions...

    - The rear disc is warped (right where it's warped, there's a white mark, I think it may have been bashed against a rock or something at one point, not overheated). Can I just bend it into shape? If not, what size/brand discs can I use?

    - How do I check pad wear? What replacement pads work or what would you suggest I use when it comes time to replace?

    - What sort of maintenance/regular checks/whatever should I be doing on these brakes?

    Thanks very much,
    T

  2. #2
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    you would need tools to bend back properly. Standard disc sizes are usually 160 but it will be written on the disc.

  3. #3
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    Quote Originally Posted by Canonite View Post
    - The rear disc is warped (right where it's warped, there's a white mark, I think it may have been bashed against a rock or something at one point, not overheated). Can I just bend it into shape? If not, what size/brand discs can I use?
    You can just use your hands, as very little force is required to true a rotor. Search on PinkBike - I believe there was a Tech Tuesday at some point addressing just this issue.

    Depending on how badly/severely warped it is, you may need to replace the rotor.

    - How do I check pad wear? What replacement pads work or what would you suggest I use when it comes time to replace?
    Look down through the caliper. You should be able to see how much material is left on the backing pads - probably time to replace when there is just 3mm of pad left.

    - What sort of maintenance/regular checks/whatever should I be doing on these brakes?
    Check the brake pads regularly for wear. Bleed the brakes when required. You will know (by the annoying sound) if and when a rotor is out of true. Otherwise, just ride.

  4. #4
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    I've always bent back my rotors with my hands. After getting it pretty close it will usually work its self straighter with more braking. Just personal experience though, I don't buy in to having to adjust bikes with surgical precision and custom built tools. Simple machines.

  5. #5
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    I agree. I have seen more damage done with tools than by hand. The tool tends to exert a massive amount of force in a small area, leading to over-correction and more damage. That is unless you are used to it and well practiced.

  6. #6
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    Awesome, thanks! Really appreciate the replies, I'll check on the pads when I get home...I tried to bend it back with my hands, seemed to work well enough when I got home from the ride yesterday...I'll try it a little more tonight and see what happens.

    Also, any suggestions on pads? Any good tutorials on how to replace pads when the time comes? Thanks

  7. #7
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    As far as pads go, I have used Avid, Jagwire and Brakepoint Authority. All were good.

    Juicy Tech manual
    Rotor straightening

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