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  1. #1

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    Do GPR R&D heads need girdles?

    We picked up R&D pump gas head for our 1200R. After looking at them, they appear to need girdles. Thoughts??
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  2. #2
    butterbean_29512's Avatar
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    I think girdles are usually standard with those heads. If you don't have them, you can make some using threaded rod.

  3. #3

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    Quote Originally Posted by butterbean_29512 View Post
    I think girdles are usually standard with those heads. If you don't have them, you can make some using threaded rod.
    I do not have them. What do we need to complete this install?

  4. #4
    butterbean_29512's Avatar
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    Just get some 10x1.25 metric threaded rod. You need enough for 12 pieces, bevel both ends of each piece. The length required includes 2 nut heights, plus 2 threads. Or, install one rod in the crankcase upper half, screw a nut down, and measure for accuracy. If you can find SS grade 5 or better that would be what I would use. Grade 8 metric is easier to find though. Good luck with it!

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  6. #5

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    Cool!! Thanks dude!!!

  7. #6
    Happily Self-Employed WFO's Avatar
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    sigh

  8. #7
    butterbean_29512's Avatar
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    I bet WFO may have a set of them. I'd want original vs making a set any day.


  9. #8

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    Quote Originally Posted by butterbean_29512 View Post
    I bet WFO may have a set of them. I'd want original vs making a set any day.
    We spoke... he hasn't said anything about having them in stock.

  10. #9
    You can run them without the girdles.

  11. #10

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    Quote Originally Posted by EricD View Post
    You can run them without the girdles.
    Actually acquired a set of lowers… just need the Allen bolts for the top side.
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