Exposed primary
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Thread: Exposed primary

  1. #1
    Habitual Linestepper
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    Default

    Hi has anyone ever put an exposed primary other xr1200x? If so where did you buy the parts from?
    Last edited by Alistair; 1 Week Ago at 07:05 AM.

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  3. #2
    Lightning is calling me…….she says “Thunder – you there? Wanna come out and play?” .....Yeah, Baby!
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    Default Re: Exposed primary

    I have only seen that on the Free Spirits (Italy) display bike but not sure if they actually sold the kit

    Free Spirits Left Side.jpg

    206904s free spirits estriberas (plata) para hd xr1200.jpg
    2009 XR1200 Italian Trophy Replica (Termi's, Marchesini's, all XR-X upgrades, Bunch of Free Spirits and TM stuff, etc....)
    1995 Buell S2 Thunderbolt #817
    1996 Buell S2T Thunderbolt #241
    2012 BMW R1200GS Dakar Rallye Edition

  4. #3
    I got no friends 'cause they read the papers, they can't be seen, with me.........
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    Default Re: Exposed primary

    ^^^I don't recall ever seeing that^^^ Wicked looking!
    Forecast for Tonioght: ALCOHOL,
    Low Standards and Poor Decisions

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  6. #4
    the older I get.the faster I was
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    Default Re: Exposed primary

    Free Spirits and Adrenalin Moto in the UK made it to use on their Buell race bike. They said at the time it was like adding 10+ hp.
    They had to use a dry clutch, make a new oil drain for the transmission and plug the passage from the trans to the primary.
    If I remember right, there was not much interest at the time.
    Matt from Adrenalin said it sounded like the bike had a supercharger.

  7. #5
    Sonya's a pretty kitty!
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    Default Re: Exposed primary

    I think I recognise Sato pegs in the lower shot above, but of course they can't use the Storz/Mr H. type shifter as there's no primary drive cover to attach it to. End result of the combo of the old coat hanger shifter and the jazzy exposed drive belt system looks a bit awkward, in my humble opinion. I like the idea however, even if its execution could be improved.

    And as always, discretion should be used before wearing your best flared jeans when riding a bike so equipped...

    J.

  8. #6
    Raised by Wolves
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    Default Re: Exposed primary

    I like the look of that, very trick. I’ve seen this done on built big twins.

    Wouldnt want to ride wearing thongs etc, haha.

    Would the horsepower increase come from no oil drag on primary belt and the clutch?

  9. #7
    Habitual Linestepper
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    Default Re: Exposed primary

    Not quite the same thing, but Babyface does make a pulley cover that's see through.

    https://www.webike.net/sd/19861500/

  10. #8
    Habitual Linestepper
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    Yeah I have seen that as well. Looks like I will have to just make my own

  11. #9
    the older I get.the faster I was
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    Default Re: Exposed primary

    Just a heads up on the primary. I have seen belt drives for Sportsters, but they will not fit a XR.
    The XR uses a different primary and the parts do not interchange.

  12. #10
    the older I get.the faster I was
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    Default Re: Exposed primary

    Quote Originally Posted by Timbit View Post
    Not quite the same thing, but Babyface does make a pulley cover that's see through.

    https://www.webike.net/sd/19861500/
    That's a Sato Racing part. Comes in silver or black.
    Runs $195 US

  13. #11
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    Default Re: Exposed primary

    It's all Greek to me.........

 

 

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