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Thread: Rotors question

  1. #1
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    9th January 2013 - 06:51
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    Rotors question

    Hi guys,


    Looking at changing the rotors on my MC22 just for piece of mind. (not sure of the history of the brakes and things). Just wondering if anyone has used these on their bikes?

    http://www.trademe.co.nz/motors/moto...-592206488.htm

    Can get Metalgear rotors which are aparently good quality but wondering if the above would be allgood?

  2. #2
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    22nd September 2006 - 21:21
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    you only replace rotors if they are worn below minimum thickness (stamped on the disc somewhere) or they are warped.

    Don't replace them just because there's better things to spend money on. If you don't have access to some vernier calipers to measure their thickness then drop by your nearest bike store, I doubt they'd even charge you to check them.

    .... back in green and feeling great ....



  3. #3
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    1st May 2011 - 12:35
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    yer can land those on yer door step for $60/70 off e-bay...

    prob what he did..then tossed another $100 on them for TM..
    Pete

    90% of all Harleys built are still on the road... The other 10% made it back home...
    Ducati... Makeing riders into mechaincs since 1964...

  4. #4
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    28th May 2006 - 19:35
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    depends what the original form of the stainless was as some is rolled out before making discs and heat etc can make it want to go back to it's original form, unlikely with an american known product with their suing laws etc

  5. #5
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    1st May 2011 - 12:35
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    Quote Originally Posted by jellywrestler View Post
    depends what the original form of the stainless was as some is rolled out before making discs and heat etc can make it want to go back to it's original form, unlikely with an american known product with their suing laws etc
    mostly all sheet metal starts off as a solid bar... peeled off with a knive when red hot..rolled to thickness...
    the heat is the normaliseing process that induces a new memory into it...

    One of the main idea of the wave design is to stop warping as the rotor heats up...
    As theres more metal in the outside cirecumference than the inside it's able to expand
    more... the spaces "wave' on the out side gives it somewhere to expand into so
    removeing the need for it to warp..
    Pete

    90% of all Harleys built are still on the road... The other 10% made it back home...
    Ducati... Makeing riders into mechaincs since 1964...

  6. #6
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    3rd November 2007 - 07:46
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    Here's what I just purchased which was a little less $ and wasn't made in China. Though my rotor did need replacing.

    http://www.ebay.com/itm/Galfer-Wave-...-/111070464317

    You'll be wanting new pads too!
    Nunquam Non Paratus

  7. #7
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    5th April 2004 - 20:04
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    I have heard that Metal gear rotors are made from plate. Because plate or sheet steel is made in rolls, when you heat it up it tries to warp back to it's natural state when it was rolled.

    I dunno how bike rotors are normally made, but I do know a popular bike shop in Wellington will no longer deal in Metal gear because of the continual ongoing issues.

  8. #8
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    21st May 2010 - 09:18
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    Quote Originally Posted by Drew View Post
    I have heard that Metal gear rotors are made from plate. Because plate or sheet steel is made in rolls, when you heat it up it tries to warp back to it's natural state when it was rolled.

    I dunno how bike rotors are normally made, but I do know a popular bike shop in Wellington will no longer deal in Metal gear because of the continual ongoing issues.
    Awwww CRAP! I don't want to hear that! I replaced my rotors with Metal Gear ones about 6 months ago... Still all good so far.......

  9. #9
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    Quote Originally Posted by Dogboy900 View Post
    Awwww CRAP! I don't want to hear that! I replaced my rotors with Metal Gear ones about 6 months ago... Still all good so far.......
    If you're not having trouble, you might have some good ones. Or what I was told was not the full story.

    I've been warned off them by a mechanic, and the parts department guy who sourced them. So if you do start having trouble, replace them with something else would be my suggestion.

  10. #10
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    Yeah at the time I was tossing up between Metal Gear or getting some Galfer or EBC from the UK.

    On the plus side I bought direct from Metal gear and they were excelent to deal with, good feed back and prompt shipping. I will just keep an eye on them as I said so far so good.

  11. #11
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    Quote Originally Posted by Dogboy900 View Post
    Yeah at the time I was tossing up between Metal Gear or getting some Galfer or EBC from the UK.

    On the plus side I bought direct from Metal gear and they were excelent to deal with, good feed back and prompt shipping. I will just keep an eye on them as I said so far so good.
    Metal Gear would not sell to me direct .... they sent me through bits4bikes ( or tried to )

  12. #12
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    Quote Originally Posted by nzmikey View Post
    Metal Gear would not sell to me direct .... they sent me through bits4bikes ( or tried to )
    I think that comes down to being contractually bound, as a wholesaler to some shops/distributors. I have mostly only encountered it with getting bike bits, but I can't think of a parts distributor/importer/agent that sells to the public also.

    There prolly are some, but I've always had to use a shop to order and pay. And I know quite a few guys in various wholesalers.

  13. #13
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    Obviously I can be pretty persuasive

    Actually no idea why they were willing to sell direct maybe I caught them at a weak moment?

  14. #14
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    Quote Originally Posted by Drew View Post
    I think that comes down to being contractually bound, as a wholesaler to some shops/distributors. I have mostly only encountered it with getting bike bits, but I can't think of a parts distributor/importer/agent that sells to the public also.

    There prolly are some, but I've always had to use a shop to order and pay. And I know quite a few guys in various wholesalers.
    Yeah there was that .... I have had this "discussion" on a thread I started ages ago.... In short I "could" have had them sent to my Father n Law & got him to bring them over when he turned up ...

  15. #15
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    Quote Originally Posted by nzmikey View Post
    Yeah there was that .... I have had this "discussion" on a thread I started ages ago.... In short I "could" have had them sent to my Father n Law & got him to bring them over when he turned up ...
    does your computer not get ebay? or demon tweeks? or dennis kirk?
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