Advertise on Bikeforums.net



User Tag List

Results 1 to 8 of 8
  1. #1
    Needs to Ride More hxzero's Avatar
    Join Date
    Jan 2008
    Location
    irvine/sb
    My Bikes
    1996 Bianchi EL/OS, 1988 Fuji Sundance
    Posts
    756
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Stripped threads on lever clamp

    I just stripped the clamp threads on my Suntour XC Power combo levers on my '88 Fuji Sundance. What's the best solution for this? Would most shops be able to retap the thread or drill through and install a nut? It's tough finding a matching replacement, and besides, these are otherwise in perfect condition.

  2. #2
    Senior Member Looigi's Avatar
    Join Date
    Dec 2010
    Posts
    7,174
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Another option that might be possible if there is enough material where the threads are is to put in a Helicoil. I would much prefer that over the other options.

  3. #3
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    40,071
    Mentioned
    27 Post(s)
    Tagged
    0 Thread(s)
    is the stripped bolt in such a place that you could just get a longer bolt,
    and put an external nut on it?
    If its a blind hole , then the helicoil is the best fix.

  4. #4
    Needs to Ride More hxzero's Avatar
    Join Date
    Jan 2008
    Location
    irvine/sb
    My Bikes
    1996 Bianchi EL/OS, 1988 Fuji Sundance
    Posts
    756
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks for the replies guys; looks like Helicoil is the way to go. Is this something I'd be able to do myself, or how much does this fix usually go for at a shop?

  5. #5
    Senior Member
    Join Date
    Sep 2010
    Posts
    2,639
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    hxzero: Installing the Helicoil is easy enough, the problem is that you need the special tap and insertion tool which would probably make it uneconomical to do yourself. I don't know what a shop would charge, but the job should take 10 minutes, tops. Drill out the hole, tap it, insert Helicoil, break off the driving tang, done. The Helicoil will be stronger than the original threads and be basically invisible.

  6. #6
    Needs to Ride More hxzero's Avatar
    Join Date
    Jan 2008
    Location
    irvine/sb
    My Bikes
    1996 Bianchi EL/OS, 1988 Fuji Sundance
    Posts
    756
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I ended up just finding a 3mm longer bolt to grab the remaining threads. A shoddy fix, but will probably take it in to get it helicoiled should the remaining threads strip.

  7. #7
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    40,071
    Mentioned
    27 Post(s)
    Tagged
    0 Thread(s)
    +1, Helicoil installation takes a few tools, tap to cut a new thread,
    and the tool to install the coil.
    its like a spring made of diamond cross section steel wire.

  8. #8
    Senior Member pat5319's Avatar
    Join Date
    Sep 2000
    Location
    Spokane WA
    My Bikes
    Seven Axiom Ti, Trek 620, Klein Aura x, Masi cylocross (steel). Masi Souleville 8spd, Fat Chance Mtn (steel), Electra Amsterdam (Steel), Bianchi (Japanese) set up as "fixie", Scwinn Triple Bar cruiser,
    Posts
    1,126
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Or, you can get a 1mm larger diameter bolt, buy a tapto match and use it,, much easier than helicoil, less messy etc etc
    Pat5319


Posting Permissions

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