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Thread: .875 Square to hex driver conversion kit

  1. #1


    2 out of 2 members found this post helpful.

    Default .875 Square to hex driver conversion kit

    With kimpex no longer offering 2.52 pitch drivers for the old square shafts found on many older sled I've come up with an alternative option. I'm having aluminum bushings made up that will press into a hex shaft driver wheel, and have a square ID to press on to the .875 square drive shaft. Waiting on final pricing for the bushing but estimate being able to sell a pair of 7 or 8 tooth 2.52 pitch drivers with my bushings installed for around $100.

    Next phase of my project sled is skid relocate so a std everyday 121" track can be used. Hoping to make some self locating plates which will relocate the skid and allow for a 121" tracks to be used. May even incorporate different sets of holes so other length tracks can be used such as 116

    The combination of my drivers and relocate plates should hopefully allow for easier and cheaper revival of some vintage sleds!

    I don't get on this site much as I focus primarily on the 4 stroke sleds. With a 3 year old son I've started thinking ahead to his first sled which is what got me into this project. The bravos and enticers are hands down the best sleds out there for young kids to get into the sport.
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    Barn of Parts Sled Salvage
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  2. #2
    Senior Member Open Mod
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    That will be a hit on vintagesleds.com too. There have been many looking for an option like this.

    opsled
    I reserve the right to change my mind if someone can prove to me it needs replacing.

  3. #3


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    I have several bushings made up now. Retail is $95 for a pair of 7 or 8 tooth drivers with bushings installed.I can ship them anywhere in US for $7, and to Canada for $24 via padded flat rate envelope.

    Next phase of my project is to make up bravo rail extensions to stretch to 121". Pushing the stock skid back for a 121 track was too much. Will post up details once I get that done.
    Last edited by hibshman25; 11-18-2016 at 11:14 PM.
    Barn of Parts Sled Salvage
    We specialize in Yamaha
    www.barnofparts.com

  4. #4
    Senior Member Open Mod Yamaha Nutz's Avatar
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    sorry but just better off with a completely different skid if going to any other track ....the bravo skid is just not worth the work i can think of many very easy swaps with other yamaha skids and will also make the sled ride that much nicer ...

    nice job on the bushings ........
    TOO MANY GPX'S
    TOO MANY SRX'S
    A FEW EXCITERS
    A FEW SS440'S
    SOME PHAZERS
    A 2000 VMAX 700 WITH OVER 14,000 MILES AND COUNTING

    JUST TOO MANY SLEDS AND NOT ENOUGH TIME

  5. #5


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    Quote Originally Posted by Yamaha Nutz View Post
    sorry but just better off with a completely different skid if going to any other track ....the bravo skid is just not worth the work i can think of many very easy swaps with other yamaha skids and will also make the sled ride that much nicer ...

    nice job on the bushings ........
    I agree there are better skids out there. What would you suggest? phazer II?

    Some guys don't have the resources or interest in shopping around for skids. My intention with the extensions is to be able to offer an affordable complete kit for guys wanting to revive a bravo.
    Barn of Parts Sled Salvage
    We specialize in Yamaha
    www.barnofparts.com

  6. #6
    Senior Member Open Mod Yamaha Nutz's Avatar
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    for 121 swap yep Phazer II skid to keep it light ....if going to 116'' regular 84-89 phazer skid ....heck even 570 exciter 87-90 for the 121 ...vmax or SRV 121 skid can work too just that most are clapped out and need new very expensive shocks

    Just my thoughts on the subject
    TOO MANY GPX'S
    TOO MANY SRX'S
    A FEW EXCITERS
    A FEW SS440'S
    SOME PHAZERS
    A 2000 VMAX 700 WITH OVER 14,000 MILES AND COUNTING

    JUST TOO MANY SLEDS AND NOT ENOUGH TIME

  7. #7
    VIP Member sleddineinar's Avatar
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    I'm about to put a '90 Phazer II skid in an '80 Enticer. I've had the sled & skid for a couple of years now and just recently happened upon a set of drivers from a 250 bravo. I will start a Thread when I get started.
    If it ain't broke... you're not riding hard enough!

    Sleds:
    1998 Vmax 700sx
    2001 700 redhead & electronics, dual headlights
    Viper pipe and SLP can
    144" x 1.25 ripsaw with IQ skid

    1997 700 Mtn Max
    Bender triple pipes
    Mad Max porting
    144" x 2.25" finger track

    1980 340 Enticer Deluxe

  8. #8


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    Attached are some photos of my 121 rail extensions for the bravo. They are steel, so just get welded to the stock rails. Added a set of wheels, and a cross shaft in the rear. The assembled skid has my prototype extensions. Last pic shows the production extension profile. Nuts get welded on for track adjuster bolts. Will work up pricing for the rail extension kit soon.

    IMG_0062.JPGIMG_0061.JPGIMG_0063.JPG
    Barn of Parts Sled Salvage
    We specialize in Yamaha
    www.barnofparts.com

  9. #9


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    Are you still producing these bushing inserts??

  10. #10


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