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  1. #1

    Sponson question

    I bought a used race ski with spare parts. I have a couple of questions about these sponsons.

    These R&D sponsons dont have a pocket relieve to go over the 1/2" bosses that mount the sponsons on the side of the hull. I can mount these but they stick away, the base, from the hull by 1/4. Looks real funny. Are these really GPR's ? early prototypes ? should I pocket or make a plate to take up the distance ?
    (I have Beach-house on my other GPR and this race GPR and the mounting is very similar to the R&D but they have pockets in the cast spacer...)

    Theses are Bullett adapter they mount on the hull ?
    or am I missing an adapter plate to space them out from the side of the hull ?

    No - neither are forsale right now.

    Thanks -
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  2. #2
    Hydrotoys's Avatar
    Join Date
    Jul 2005
    Mesa, AZ
    I don't have any background with these. Something doesn't look right. Not sure what. You got more views of them?

  3. #3
    Banned User
    Join Date
    Dec 2006
    Crest Hill, IL
    All i know is that 1300's were flush, and 1200's had a bolt holding the internal threaded insert on...When I make my backing plates, I need to know which style they have....
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  4. #4
    Yep = mine is the 1200 style Maybe my sponsons, the R&D's, are for 1300s
    So I will make a plate and space them out maybe spilt the difference and pocket them some and make a thinner plate.

    Bulletts ???

  5. #5

    Join Date
    Nov 2005
    Charleston, SC
    you need to get a bigger drill bit then the inserts and drill them flush with the hull. Just be careful not to miss up the threads or the hull

  6. #6
    XL1200Ltd-Keith's Avatar
    Join Date
    Aug 2005
    There is a picture in this post.
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