To hack or Not to Hack - 76 Triumph Bonneville (750) or a 65 T100SS (500)

Discussion in 'Hacks' started by Zertnox, May 13, 2013.

  1. Zertnox

    Zertnox n00b

    Joined:
    May 13, 2013
    Oddometer:
    3
    I have had both bikes for over 15 years. One fully restored (T100SS) and the other mechanically restored to factory original but cosmetically as found. I am thinking about putting a Ural style sidecar on one of them - probably the Bonnie.

    I have been riding bikes since about 1976 and have always wanted to do a hack.

    As to fabrication skills, I have some mechanical and machinist skills and a nephew who knows his way around a welding shop.

    Thoughts?
    #1
  2. jaydmc

    jaydmc Long timer

    Joined:
    Sep 26, 2008
    Oddometer:
    1,111
    You might want to take a look at our M72D sidecar, we build it to sit a bit lower for the Bonnevilles. We do a lot of the newer Triumphs, All we would have for your bike are "universal" type mounts.
    Jay G
    DMC sidecars
    866-638-1793
    www.dmcsidecars.com
    #2
  3. Zertnox

    Zertnox n00b

    Joined:
    May 13, 2013
    Oddometer:
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    Thanks for the offer, but I have an older Ural sidecar sitting in the garage with the original mounting hardware. I am hoping to home brew the subframe and mounting. Although you universal kit looks interesting.

    What i am really looking for is anyone with experience with vintage motorcycles in general and Triumph in specific and help determining which bike to hack.

    Thanks
    #3
  4. Zertnox

    Zertnox n00b

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    May 13, 2013
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    After reviewing your website, if I where to buy new,, it would be one of your Watsonian Grad Prixs.
    #4
  5. Old Mule

    Old Mule Been here awhile

    Joined:
    Mar 24, 2013
    Oddometer:
    457
    Location:
    Chihuahuan Desert in Texas
    I first built my 64 Bonnie sidecar outfit in 1981 and would never part with it. Been all over the area Sioux City-Davenport-Milwaukee-Boundary waters, many times two up and with all camping gear.
    Single carb head, no engine mods. One tooth smaller c-shaft sprocket. 5 speed cluster.
    Steib S-350 weighs about 170 pounds. A Ural is grossly over sized and overweight for a 650.
    A Watsonian would be very nice, beat up ones do turn up for sale if you have patience.
    I think the 500 is best left as a revvy sport bike.
    A subframe is neccessary for the OIF bikes, with just traditional tube mounts. (be sure to leave room for your foot upon the kickstart though). and don't let a mount stress the joint between the swingarm pivot and the oil-bearing downtube. The subframe should bypass and not stress that area.
    Build light, man.
    I think you'd be really happy with a traditional lightweight sport sidecar, I have always been.
    Sorry the only digitised photo of mine is the poor one on my profile here.
    #5
  6. Old Mule

    Old Mule Been here awhile

    Joined:
    Mar 24, 2013
    Oddometer:
    457
    Location:
    Chihuahuan Desert in Texas
    Triumph twin sidecar outfits were road tested in many English and a few German and American motorcycle magazines, at least as far back as 1950.
    Doing the research and seeing how they were set up back in the day really helped when I was building mine.
    #6