Paralever Driveshaft

Discussion in 'Airheads' started by Beater, Dec 22, 2011.

  1. Beater

    Beater The Bavarian Butcher

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    #1
  2. grteacher

    grteacher Adventurer

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    I also would like to have some info about that !
    Look's just the way it sould be but.... is it so ?
    #2
  3. Beater

    Beater The Bavarian Butcher

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    There is a facebook group about his Airhead Club in Australia ... and anyway the guy is a hoot (good thing!). He doesn't have a lot of literature about it, but he claims that they last about 200 Km, and then you 'wack' in a new set of CV joints and new rubber kush cartridges, and you're good for another 200 Km. At half the cost of a new shaft (installed) ... it might be the way to go.

    Facebook Club: http://www.facebook.com/#!/groups/AirheadsAustralia/220563518021073/

    I have no idea about shipping ... and I have no idea if it's real ... but it seems like a great thing if it is ...
    #3
  4. jackd

    jackd Long timer

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    There's a whole other thread on this unit from last summer - suggest you go there and start reading.
    #4
  5. lockyv7

    lockyv7 Long timer

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    I knew i had seen them before, there in an add for Ted Porters Beemer Shop Scotts Valley CA.

    The add is in the BMW-ON for $579.00 with one year warranty
    i dont see it in the latest issue but its in others.

    Cheers Locky.
    #5
  6. darklight79

    darklight79 drink it , ride it , nail it

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    yep running one now in my gs .... buy it from ted porter nice unit well put togtether when i changed mine it wasnt that u joints were toast> they were ok .. it was out of phase ..I noticed quite a difference in ride after the change out smoother etc ... and lubable bite the bullet Order it ....from Ted :clap
    #6
  7. bmwrench

    bmwrench Long timer

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    The BeemerShop is supposed to have exclusive rights to distribution of these 'shafts in the US. Looks like Ted is charging a fair price for them.
    #7
  8. Stagehand

    Stagehand Imperfectionist

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    I've also got one in right now. Seems to be holding up fair well.
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  9. supershaft

    supershaft because I can

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    I think we have seen one shredded here on ADVR but that doesn't mean they all do that.
    #9
  10. jackd

    jackd Long timer

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    That wasn't one of these. That was one of the HPM rebuilt units. From what I remember, the suspected cause of the failure was contamination of the cush drive by the leaks from the final drive. This failure was very rare - he puts out a good product.
    #10
  11. fishkens

    fishkens Long timer

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    Yeah, mine's out of phase right now (check out the angle of the u-joint at the front that bolts to the tranny on the right).

    Smoother, eh? That'd be a plus in addition to some peace-of-mind as this shaft is going on 60K (the one on the left crapped out at ~30K).

    [​IMG]
    #11
  12. grteacher

    grteacher Adventurer

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    They can be found in Europe also !
    The thing is to know if they last , at least longer than the original ! Mine was gone at 30000 km. The second one is still good , so far....
    How many miles on your aftermarket ?
    #12
  13. supershaft

    supershaft because I can

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    Thanks, I thought they were one and the same. Are they designed different? Since the final drive input seals leak on a very regular basis, I hope they are fairly oil resistant.
    #13
  14. Velocipede

    Velocipede Been here awhile

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    So what am I supposd to see here?Is the four bolt flange on the end supposed to line up with the universal.

    If Stagehand gives the aftermarket driveshft the thumbs up given the way he beats the living daylights out of his GSPD then it should be fine for bikes ridden by the average rider.
    John
    #14
  15. mykill

    mykill odd

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    The original driveshaft on my GS looked much like the one on the right but worse. My whole swingarm was filled with Hypoid when I got it and the rubber was swollen and oozing out of the shaft. The shaft was also about a 1/4 turn out of phase. I'm running an HPM now which is filled with a firmer (polyurethane) material that is similar to skateboard wheels. My output shaft and FD have all been resealed, but I hope it is more oil resistant regardless.
    #15
  16. Airhead Wrangler

    Airhead Wrangler Long timer

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    I'd say he's pulling that number out of his ass. They've only been around for a year or so. I seriously doubt anyone has put 200,000 miles on one yet.
    #16
  17. wirewrkr

    wirewrkr the thread-killer

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    200,000 km is only 125,000 miles.

    Still, I don't disagree with you about the 1 year versus 125,000 miles, buuuut, you just never know.
    #17
  18. One Less Harley

    One Less Harley OH.THAT'S GONNA HURT

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    collectively 125,000 miles.......:evil
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  19. Beater

    Beater The Bavarian Butcher

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    Interesting thoughts ... all around. My driveshaft was replaced less than 1,000 miles ago ... so hopefully I won't have to worry about this for 50,000 or so. I'd like to think that these are the wave of the future ...

    If for no other reason than to make Brad rethink his position on paralevers. :lol3

    I'll wait ... by the time I have 50,000 miles on mine, I'll bet Stage's will be approaching 1,000,000 of constant abuse. We'll have plenty of hard data by that time. :D
    #19
  20. fishkens

    fishkens Long timer

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    Yup. The rear half of the shaft (at the front of the photo) and the front half are separated by the rubber dampener. Over time they get out of phase because the rear half twists in the rubber and doesn't return.

    As for being out of phase, there's been a lot of talk that that's a problem that leads to failure of these shafts. There's also talk of the shaft operating at greater angles (say, compared to a R100R with less suspension travel) and that's the cause of failed u-joints.

    There's also mention that out-of-phase leads to vibration.

    All I want is a shaft that won't fail at 30K miles. I've had that for awhile (the current shaft is at 60K but I'm getting nervous - esp. given that it's so much more out of phase than the previous shaft) but if the OP is pointing to what's truly a better mousetrap I'm staying tuned.
    #20