Leading Link Designs - Post Pics

Discussion in 'Hacks' started by Pezz_gs, Feb 5, 2008.

  1. furry bob

    furry bob fluent in gibberish!

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    central coast nsw, the land of oz!
    pezz have you considered using a design like the original earles fork type on the r60/69 bm? truly robust , and built by engineers. the one on my outfit has been on a few different ones and is as good as the days it was made. i will try to get the mount back to you friday morning. sorry it has taken so long, but my mums in hospital and things are a bit fraught at the moment.
    #61
  2. Pezz_gs

    Pezz_gs Cant ride for crap

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    No Worries Furry Bob.

    Looking at all options but also creating an information source for others . . . and me :evil
    #62
  3. Pezz_gs

    Pezz_gs Cant ride for crap

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  4. Pezz_gs

    Pezz_gs Cant ride for crap

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  5. tripodtiger

    tripodtiger I used to be SCRay

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    you dont call wagga wagga wagga
    Yeah, thanks Claude.
    There are lots of ways to skin a cat.
    #65
  6. tripodtiger

    tripodtiger I used to be SCRay

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    you dont call wagga wagga wagga
    I'd be interested to see the stroker in the background. Jawa? with a 70's style stinger chamber, knobbies & a chair. Yeeooowww!
    RebuildsRus:D
    #66
  7. Pezz_gs

    Pezz_gs Cant ride for crap

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  8. claude

    claude Sidecar Jockey

    Joined:
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    Location:
    Middleburg, Pa. (Snyder County)
    Note the system made by MotoWig is a single sided swingarm design that utlizes a rear paralever swingarm.(upper right)

    The single sided swingarm leading link we built (bottom left) worked well but I was not happy with the pivot bearing design I used. It has an adjustble trail feature on it.
    The thing is on hold right now due to work load etc. Once we get back on it we may put it on Sgt. Brown's K Monster or my R100R rig..not sure yet. It was first tried on a R100GS rig.



    [​IMG]
    #68
  9. claude

    claude Sidecar Jockey

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    This is a Unit leading link being mounted to a BMW K K100

    [​IMG]
    #69
  10. FUTURE

    FUTURE Left right out

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    Exiled from Democratic Republic of Bingistan
  11. Sparke

    Sparke Been here awhile

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    Sparks, Maryland,USA
    #71
  12. Sparke

    Sparke Been here awhile

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    Sparks, Maryland,USA
    MY 1982 EML Goldwing front end.

    [​IMG]
    #72
  13. tripodtiger

    tripodtiger I used to be SCRay

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    Future,
    that is a fabulous site. The last two gallery pics - the Tiger and the 1150GS just makes me jealous.
    BUT THE BASTARDS ARE ALL ON THE WRONG SIDE!!!!!:cry:cry:cry:cry:cry

    Pezz,
    I just 'remembered' that my dampers are all Bilstein. Leigh got them from Melbourne.
    Maybe I should get a Bilstein sticker for the bike, at least then I could remind myself.
    #73
  14. Pezz_gs

    Pezz_gs Cant ride for crap

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    [​IMG]

    [​IMG]
    #74
  15. tripodtiger

    tripodtiger I used to be SCRay

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    Note to Pezz.

    Stop posting photos of sidecars with the bloody photo flipped over. You're driving me crazy!!!:lol3
    #75
  16. Hack'dTiger

    Hack'dTiger n00b schn00b

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    This one isn't nearly as elaborate as some of the others posted, but it's the suspension that Dauntless built for the Tiger Rig that I now own.

    Attached Files:

    #76
  17. vortexau

    vortexau Outside the Pod-bay

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    [​IMG]
    OEC-Temple Duplex Forks

    [​IMG]
    #77
  18. Dr Jim

    Dr Jim Been here awhile

    Joined:
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    Oddometer:
    500
    And now you all know why the O.E.C. company was affectionately referred to as:

    "Odd Engineering Concepts"

    Actually, this front end (one rather hesitates to call it a 'fork') was delightfully solid and stable at a time when most front forks were allowed to simply wave about loosely in the breeze, with tank-slapping and high-speed oscillations considered the norm, not the unusual.

    It's weakness were the multiple bushings that defined the parallelogram which suspended the wheel - they had to be tight to prevent play, but loose enough to allow the headstock to turn easily - any dirt, grit, or misalignment and the bike reverted to classic 'Arm-Strong' steering.

    Also, wheel turning angles were somewhat less than conventional forks - constrained not so much by design, but by the lever arm's strength - they're subjected to significant compression and bending forces.

    Still, it's interesting to consider this front end being built with modern teflon-lined bushings (or even heim joints), and high-tensile rods. It should be no more difficult than a LL or TL design, and a delight to ride on a sidecar rig.

    Cheers

    Jim
    #78
  19. vortexau

    vortexau Outside the Pod-bay

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    The strange thing is that I penned a diagram of a off-setting trike frontend some fifteen years back, similar to this O.E.C. Duplex, before I had laid eyes on the O.E.C.

    My version had larger-scale geometry that would have moved the trike front-wheel to the outside during cornering . . . imitating a racecar that lifts the inside front to corner on three wheels.

    Scaling a OEC-type could produce a sidecar machine that moves the frontend outboard when the chair is on the inside of the turn --- effectively widening the track to place the CG further inboard.

    The same displacement of the frontend chairward, when cornering with the chair on the outside of the turn, would allow the frontend to offload some of the mass-transfer to the chairwheel; reducing chairwheel suspension compression.

    That O.E.C. (in the picture) seems to use a plunger-style suspension, but I can see this geometry being used with upper & lower swingarms to make a "hub-centre" that has no actual centre steering axis. This concept would still require a wishbone-link to handlebar.
    #79
  20. AL-58

    AL-58 BMWs make good landfill

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    The tubes were the same size full length, nothing butted against the triple clamp, it snapped where the welded gusset was. Was well put together and everything fitted well, so it was a good fabricator, but material way too light. I know cause its my bike. It was either from South Oz or somewhere around Wollongong, never been able to find out any more.

    Al
    #80