Crank pedal thread sizing?
06-24-13, 02:24 PM
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Crank pedal thread sizing?
I have a 70's Gitane midget and I was wondering if there is some weird "french" pedal threading on these? They won't fit modern SPD pedals even though the spindle flats take the same size (or so I recall) pedal wrench. Seems like they're only a little off. Can I retap these to take modern pedals? Or should I just get a new spindle and lose the cottered cranks altogether? Fortunately these have a normal 68mm BB.
06-24-13, 02:31 PM
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06-24-13, 02:55 PM
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Old french bikes have 14mm pedal threads. Any decent bicycle shop can tap them for you. Very little material is removed.
The taps required are bicycle specific and not cheap. I think I paid $30 for mine.
The taps required are bicycle specific and not cheap. I think I paid $30 for mine.
Last edited by Grand Bois; 06-24-13 at 03:04 PM.
06-25-13, 04:02 PM
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The pedal taps you need is 9/16 inch and there is a left side and a ride side tap, so don't use the wrong ones.
06-25-13, 06:00 PM
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The thread is 9/16 X 20, not the 9/16 X 18 you'll find in your Sears tap and die set. Plus, you'll need both right and left threaded. Bike Shops have them for chasing threads, not because they tap out a lot of French cranks.
Mine are made by Park. It was worth it for me to buy them because I love French bikes, but I'm not particularly fond of French pedals.
Mine are made by Park. It was worth it for me to buy them because I love French bikes, but I'm not particularly fond of French pedals.
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