Disc/coin in only one of the pistons?
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  • 1 Post By american opel
  • 1 Post By Designeer

Thread: Disc/coin in only one of the pistons?

  1. #1
    Junior Member Designeer's Avatar
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    Disc/coin in only one of the pistons?

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    I had to pull my rear caliper off to install a bracket that the atvguy sold me and shipped very fast, great service, great parts source !!

    Anybody know why I found one piston with a steel coin in it on top and the other one is hollow and without a coin?

    The parts diagram does not show any coins?

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    Am I missing a coin, are none supposed to go on there? Or do I need 2 even though not in parts diagram?

    Thanks in advance.......
    Last edited by Designeer; 05-01-2019 at 08:33 PM.

  2. #2
    Senior Member american opel's Avatar
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    piston caps really arnt needed
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  3. #3
    Junior Member Designeer's Avatar
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    Thanks for the tip American Opel !!

    UPDATE:

    A local mechanic who knows the TRX250R quite well said those discs are added for more even pressure and yeah not necessary but nice.

    UPDATE: atvguy had one and is sending it !!!!!!
    Last edited by Designeer; 05-02-2019 at 08:51 PM.
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  5. #4
    Dyl
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    Does anyone have the specific height measurement for the disc? I broke them while rebuilding my caliper. Or will I not see too big of a difference when braking with out the disc?

  6. #5
    Junior Member Designeer's Avatar
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    Dyl, I rode for years with an unbalanced condition of having even only one disc and still stopping on a dime because the brake pads wear to adapt to the condition, I think the discs installed offer a very slight advantage but don't stress if you don't have them I think and I've been told.


 

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