Suntour symmetric shifter

Discussion in 'Vintage and Classic Bikes' started by carpenter, 11 Oct 2018.

  1. carpenter

    carpenter Active Member

    Location:
    suffolk
    Hi all,

    looking for help - I am not sure what the part is called, but the threads are stopped in the captive nut (has lips/wings similar to brake lever captive nut for tightening band to bars).
    Any ideas?
     
  2. Cycleops

    Cycleops Guru

    Location:
    Accra, Ghana
    Pics would help
     
  3. OP
    OP
    carpenter

    carpenter Active Member

    Location:
    suffolk
    sorry about the image quality - holding torch with one hand!

    IMG_0455.jpg
     
  4. biggs682

    biggs682 Smile a mile bike provider

    Location:
    Northamptonshire
    I know the nut you are on about they are the work of the devil for sure
    @carpenter are you saying you need some new ones as the thread is damaged in yours ?
     
    carpenter likes this.
  5. GuyBoden

    GuyBoden Fat, old bloke, on an old bike, pedalling slowly.

    Location:
    Warrington
    s-l1600.jpg

    Can you put another nut behind the existing de-threaded nut?
     
    Last edited: 12 Oct 2018
    carpenter likes this.
  6. OP
    OP
    carpenter

    carpenter Active Member

    Location:
    suffolk
    Hi Biggs, yes the existing nut is "screwed" so to speak! so I am looking to find a replacement.

    Hi Guy, I had thought of that but there is little space - perhaps one thread worth. You have got me thinking though, if I cut a small thin strip of steel with the right size centre hole, then it may be possible to draw it up using a new nut.

    I tried a spare Weinmann brake nut this morning, but it is the wrong thread.
    I will have to look for a knackered symmetric lever on eBay and see if the nut is usable, as the rest of the lever/assembly is in lovely condition and I like the way the levers are lifted above the downtube.
     
    Last edited: 12 Oct 2018
    Gravity Aided and biggs682 like this.
  7. GuyBoden

    GuyBoden Fat, old bloke, on an old bike, pedalling slowly.

    Location:
    Warrington
    Use a smaller bolt and blind rivet in the existing nut hole.

    s-l1600.jpg
     
  8. OP
    OP
    carpenter

    carpenter Active Member

    Location:
    suffolk
    genius:hugs:
     
    biggs682 likes this.
  9. Can't re-tap the threads for larger bolt?
     
  10. OP
    OP
    carpenter

    carpenter Active Member

    Location:
    suffolk
    It would involve drilling out the body of the lever mount as well, which is possible but getting a little too far away from the "beauty" of the original.
     
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