Advertise on Bikeforums.net



User Tag List

Results 1 to 7 of 7
  1. #1
    Senior Member
    Join Date
    Sep 2007
    Posts
    88
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Old pedals still good after rethreading cranks?

    Hi all,

    I've been rebuilding my old '74 TdF Gitane. Everything is clean, greased and running fine now. The bike still has its old Ti clip pedals and I want to replace them with Speedplay X3 taken from another bike. The French thread on the cranks is 14 mm x 1.25 while the Sp pedals are 9/16 x 20 tpi. I can get the cranks rethreaded for the Sp, no problem.

    My question is : after rethreading, will it still be possible, if need arises, to put back the old pedals without rethreading to french thread ? I fear the new ISO thread will be too big and the old pedals come loose... Or am I just drinking too much Porto ?

  2. #2
    slow as I ever was Ex Pres's Avatar
    Join Date
    Dec 2007
    Location
    an imposter living in the 35223
    My Bikes
    see signature
    Posts
    5,474
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Your old pedals will never fit again. Sell 'em on eBay or swap here on BF (C&V trade sticky) for something you need.

    And good choice on the TdF

  3. #3
    Senior Member
    Join Date
    Sep 2007
    Posts
    88
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Tx Bob for your answer but it was a stupid question... I tried it, putting one of those old things onto my new bike. Well, it's not a perfect fit, the pedal is a little loose but it should hold just right with some grease and/or loctite and elbow torque.

  4. #4
    Gitane GranTour Navy_Chief's Avatar
    Join Date
    Nov 2007
    Location
    Waynesboro, PA
    Posts
    139
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I would not gamble with it, if it does not fit just right (as in the threads match exactly, not just close enough with some glue) I could come off at any time with disastrous results. Nowhere near worth the risk involved.

  5. #5
    slow as I ever was Ex Pres's Avatar
    Join Date
    Dec 2007
    Location
    an imposter living in the 35223
    My Bikes
    see signature
    Posts
    5,474
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    9/16"x20 ~ 14.3mm x 1.27, so it's not a huge difference, but imagine stomping on those pedals up a 15% grade while standing, and that pedal flops out at the top of the stroke. Hope you're wearing a cup.
    72 special CNC ___________ 72 Frejus (ala Legnano) __73 Holdsworth Record
    78 Raleigh Professional_____ 80 Ranson_____________ 80 unknown French (SS)
    82 Peugeot PXN10_________83 Trek 600____________ 85 Gianni Motta
    85 Trek 560______________88 Guerciotti GLX
    90 Miele Gara_____________02 Casati Dardo (g/b\k)___02 Casati Dardo (y/blk)
    03 Casati Dardo___________08 BF IRO (fixed)________10 Vassago Fisticuff (IGH)

  6. #6
    Senior Member Grand Bois's Avatar
    Join Date
    Mar 2005
    Location
    Pinole, CA, USA
    Posts
    14,781
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Don't do it. You can ruin the threads and then you'll be looking for a new crankset. Aluminum threads are easily ruined. It will be very expensive to replace it with another Stronlight 93.

  7. #7
    Senior Member
    Join Date
    Sep 2007
    Posts
    88
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Well, after reading your comments, I guess I will have to put up with those ti clip pedals, after all.

    Thank u all...

Posting Permissions

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