Advertise on Bikeforums.net



User Tag List

Results 1 to 4 of 4
  1. #1
    Newbie
    Join Date
    Aug 2007
    Posts
    3
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    1930s Sun Tandem

    Hi Everyone
    I've had this bike for around 10years. A guy at an old bike shop told me a few things about it: that it was probably made in the 1930s-possibly assembled post-war, and that it isn't a particularly notable frame but (what he called) 'the kit' is in unusually good condition. It is an amazing ride-VERY heavy-very fast-and the monster drum brakes stop it quickly. I took the rear wheel off to change the tyre a couple of days ago and things escalated into a wheel/hub strip down-it was all so dirty that it was impossible to see the individual components. Here are some pics.

    The deralier is fixed to the frame-the bracket with the arc shaped end-sits between the cogs and slides the cassette on splines on the hub.
    The rear wheel felt a bit rough-a ball bearing has split and the bearing race (is that the word?) is heavily worn. The other one is not so worn.
    Last two are part of the rear brake mechanism-

    I'm going to take a few more pics as i put it back together and will put them up over the following days. Any comments or info on this old bike would be much apprieciated-

    cheers
    steve
    Attached Images Attached Images

  2. #2
    Senior Member
    Join Date
    Feb 2005
    Location
    Pleasanton Tx
    My Bikes
    old,older.and very old
    Posts
    1,065
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I beleave you are decribing the travelux (or something like that) derailer---the the cassette moves not the tenion wheels like in most derailers.
    This is the cyclo twin wire derailer

    Post a few pis when you finish---sam

  3. #3
    Newbie
    Join Date
    Aug 2007
    Posts
    3
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    thanks for your reply, Sam-you were right, with some cleaning the word 'Trivelox' is visible on some of the gear components-they work as you described. This is what i've found so far on Trivelox gears:they were manufactured in Birmingham, England and appeared on many makes of more upmarket British roadbikes, particularly tandems, in the 1930's. Apparently their was a British thing about keeping the line of the chain fixed and Trivelox, and Sturmey Archer, fall into this engineering tradition.
    heres a pic of another Trivelox set up on a 1938 BSA tandem that i'm considering buying

    your bike looks amazing BTW-i'm marvelling at how much work it must have taken to get it into that shape
    cheers
    steve
    Attached Images Attached Images

  4. #4
    Senior Member
    Join Date
    Feb 2005
    Location
    Pleasanton Tx
    My Bikes
    old,older.and very old
    Posts
    1,065
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)


    found this pic in some of my books----sam

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •