Prutser's bike stinks....

Discussion in 'Airheads' started by Prutser, Jul 23, 2013.

  1. Prutser

    Prutser Long timer

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    It's the same bike Dave, with the same subframe.

    IMG_1946.jpg

    The bottom picture shows a bit better what curves the tubes have.

    IMG_1944.jpg
  2. Prutser

    Prutser Long timer

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    IMG_2878.jpg
    The bike looks a lot better now with it's black rims.

    Made a picture with the frame mount.

    IMG_2463.jpg


    IMG_2459.jpg
    Stagehand likes this.
  3. thelegend024

    thelegend024 R80GS 1990

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    Real nice and practical solutions!

    From here interest in the results of your subframe on the GS showed earlier:

    [​IMG]

    How does the (original?) fender fit and is it applicable for the orginal seat lenght ( a loose mount TT-one seater with carrier)?

    Thanks in advance!

    -Tapatalk -
    leolou likes this.
  4. Prutser

    Prutser Long timer

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    The stock double seat will fit but the lock will be different. I didn't try the stock fender because I won't be using one.
    I never use the solo seats with luggage rack because it's heavier compared to the stock seat plus luggage on a rack wears a lot faster than when tied onto a seat.
    It wouldn't be hard to make the solo seat and rack work if I ever change my mind.
    thelegend024 likes this.
  5. fosterb

    fosterb Adventurer

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    apologies for the late reply to the front end bit, but are those triple clamps from the RM or something you cleverly devised? easy to fit to the head tube?
  6. Prutser

    Prutser Long timer

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    The ones I used are my own custom triples. The RM ones will fit too but will have less steering lock.
  7. nmalozzi

    nmalozzi airheaded

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    Prutser likes this.
  8. Prutser

    Prutser Long timer

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    We have done some more testing with the hydraulic rear brake.
    The first time I had a 14mm master cilinder with a 12mm slave cilinder. With that I needed to push way to hard to lock up the wheel.
    Later I used a 13mm mc still with the 12mm slave cilinder which was a lot better but still not good enough.
    The bike in the picture needed to ride asap so I used Dmaster's set up from his BMWsaberg project. He had made a 14mm slave cilinder with a 12mm master cilinder.
    This ratio turned the rear brake into an on/off switch :waysad

    In the end we used my prototype 12mm slave cilinder together with a 12mm master cilinder which performed really nice.
    Still need to test in on a fully loaded bike with some decent road tires but it does feel like a perfect match.

    P3264160.jpg
    Stagehand, Te Hopo, pietas and 13 others like this.
  9. igormortis

    igormortis Cafe Reise

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    Prutser, is this still the same bike from the previous pictures? Looks like a former paralever bike still - but a different master cylinder placement now.

    *edit - never mind. I see it is a different bike now.

    But I'm interested to know if you have a preference for the location of the master cylinder.
  10. Prutser

    Prutser Long timer

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    The R100GS frame on the bike above was reinforced so they already fitted a mastercilinder from an CRF450. Personally I prefer a mastercilinder with a reservoir mounted higher.
    So it is a different bike indeed but the same slave cilinder.

    Until now I have only been able to mount a mastercilinder on the GS frames which was easy. Fitting one on a G/S frame might have to wait until the winter when I have more time for these sort of projects.
  11. Basic_Gerd

    Basic_Gerd Gerd

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    Exactly the information I searched for. Thank you!!
  12. Uke

    Uke visualist Super Supporter

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    I'm waiting for the info of when it will be available as a straight bolt-on for a Paralever GS (actually R100R) and price delivered to Texas, USA. I think this will eventually be an essential for those of us with mono & Para bikes with rear drums. It certainly seems a better plan than adapting a R1100 disc Paralever just for the brake.
  13. Stagehand

    Stagehand Imperfectionist

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    Indeed. In fact, the cable arrangement set up that I have, it was suggested that BMW Dakar guys went away from it because the whole cable and linkage gets gummed up with crud.

    I can see me getting two of these if they become available :D One as a spare.
    dazzadm, Uke and Jim Day like this.
  14. igormortis

    igormortis Cafe Reise

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    You've already got a free mounting point (shock mount) on your final drive, Jason - should be pretty straightforward I'd think.
  15. Screaming Chicken

    Screaming Chicken Long timer

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    Because visuals are so much better... Start dreaming Jason:

    [​IMG]

    I could see one of these in my future too. Not that I particularly need one, the old brake has been acceptable enough for 200k km already, but damn it's a cool bit of airhead bling. :lol3
  16. Mugwest

    Mugwest .

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    When is preliminary R&D on the hydraulic clutch upgrade going to begin? :hmmmmm
  17. janpra

    janpra n00b

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    Hi Prutser,

    I'm new here in this forum.
    Would like to ask you some questions, please.
    What sort of front fork is the one on the
    "less mud orientated bike" ?
    How much suspension travel does it have ?
    Do you sell this stuff ?
    Do you have a separate internet homepage.

    Cheers, and have a nice day

    Jan



  18. Prutser

    Prutser Long timer

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    The Hydraulic clutch is Dmaster's project. He knows more about those parts.

    The hydraulic drum brake will take some time to get it done.(doesn't hurt to test it a bit longer)
    Uke likes this.
  19. Prutser

    Prutser Long timer

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    Hi Jan,
    It's a Hyperpro 43mm fork. The amount of travel depends on the length you use.
    I don't have a homepage because these build I'm doing is just for fun not for business.

    If you would like to know more details about the fork please send me a PM.

    Cheers, Bas
  20. Mugwest

    Mugwest .

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    I was trying to be funny-- I should have known you guys were already working on one! :lol3