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Thread: Nozzle size

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    Nozzle size

    When size nozzle from a Gpr12 or 13 should I use on my 99 xl1200 to get more top end 87 or 85 mm.


  2. #2
    philip_gpr's Avatar
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    I'd suggest 87 mm GP12R

    If you also installed a 05 GPR pump you could try the 85 mm GP13R

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