Thread cutting a Fork Steerer, Advice Please

Biffocp
Biffocp Posts: 10
edited June 2007 in Workshop
Advice please,

Am trying to put some 531 forks off an old Dawes mountain bike onto a ( tange) frame.

The race has been changed over, but the head tube of the recieving frame is smaller, therefor i need to cut some two inchs of thread. The lbs is talking in excess of 20 quid to do it, they say its a long job. Maybe i could locate or buy the die myself. Its an inch steerer tube can anybody tell me what size i should be looking for, pitch,depth etc.

(Its part of a project to build up a tourer, have begun with a new! B17,,,, bliss)

Any ideas?

Comments

  • monty_dogcp
    monty_dogcp Posts: 382
    It's not a difficult job, just time consuming because you're cutting a new thread into the steel which means lots of elbow grease and cutting fluid. I expect the cost of the die is more than what your LBS are charging, so best leave them to it. A fork threading die set & holder from Park Tool, the FTS-1 is œ224! Thread is BS 1"x24TPI
  • onbike 1939
    onbike 1939 Posts: 708
    <blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Monty Dog</i>

    It's not a difficult job, just time consuming because you're cutting a new thread into the steel which means lots of elbow grease and cutting fluid. I expect the cost of the die is more than what your LBS are charging, so best leave them to it. A fork threading die set & holder from Park Tool, the FTS-1 is œ224! Thread is BS 1"x24TPI
    <hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">



    +1
  • Biffocp
    Biffocp Posts: 10
    Thanks for replies, the idea was to keep costs down at least untill i see if it all works ok, hence no powder coat till i had checked out the new handling characteristics etc, maybe i had better just pay the lbs.

    once again thanks.

    Biffo


    'evil can only grow when the good people do nothing'
  • marmitecp
    marmitecp Posts: 203
    +2

    I had this done last week and LBS only charged me 3 quid. He's done a really good job and a locknut screwed on fine in the shop to demonstrate.
    However when I tried to screw the original Peugeot race onto it back home it wouldn't fit. I've tried heating it up and made sure the threads are clear, but it is just too tight.

    Back to LBS next Saturday to try and get a race and locknut that fits.
  • Ki
    Ki Posts: 14
    My LBS did some forks for a fiver. I just asked them to continue the thread well below the size of the head tube of the frame then I cut the steerer later. If you can, get them to either cut a groove or file the steerer for the headset locking ring.... I forgot to ask and it was a real pain trying to file the steerer with a blunt file.

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