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Convert threaded to threadless

BobScarleBobScarle Posts: 282
edited November 2014 in Workshop
I bought an old Peugeot steel bike (nothing special) with a view to building it up as a winter / do anything single speed bike. I started the strip down and all was going well until I got to the handlebars, I am going to replace them and the stem. The stem has seized in the forks. I don't mind cutting the stem to get it apart and then I may (or may not) be able to get the rest out. However the forks are damaged, it looks like the dropouts are bent. It may be possible to bend them back.

So I thought if the forks are damaged, and given that they will have a French headset, it may be easier to replace them. I could change them for some more steel ones with a thread or I could go threadless. There is the question.

How do I change from threaded to threadless? Is it just a case of new forks and new headset or is there more to it than that?


  • imposter2.0imposter2.0 Posts: 11,387
    new forks, new headset, new stem, probably new bars...
  • nicklousenicklouse Posts: 81,520 Lives Here
    Imposter wrote:
    new forks, new headset, new stem, probably new bars...
    and some spacers.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • imposter2.0imposter2.0 Posts: 11,387
    yes.. ;)
  • I have some new bars and I was going to use a new stem mounted on a quill adapter (won't need that now). If all I need to do is buy new forks and a new headset then that should be fine.

    Thanks for the responses.
  • rafletcherrafletcher Posts: 1,235
    Have your tried violence to remove the stem? Undo stem bolt a few turns, and whack it with a mallet if its a bit stuck. Then using a piece of wood - in my case a 12" length of 2" square - on the underside of the stem where it turns from vertical to horizontal, smite as hard as you can, repeatedly, with a lump hammer. Oh, after putting plenty of PlusGas up there and leaving it to soak for a few days.

    1" steel forks with the correct length of threaded steerer won't be that readily available off-the-shelf.
  • maddog 2maddog 2 Posts: 8,114
    Can you get 1" threadless forks....?
    Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer
  • keezxkeezx Posts: 1,316
    Yes, I have 3 of them.
  • gozzygozzy Posts: 640
    Both wiggle and ribble stock them.
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