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General Category => Frame, Tank, Seat, Controls, Etc => Topic started by: Scott on December 07, 2011, 12:35:28 PM

Title: Thread Pitch
Post by: Scott on December 07, 2011, 12:35:28 PM: Anybody know the thread pitch of the steering stem? I've ruled out 24, 25.4, and 26.
Title: Re: Thread Pitch
Post by: LARRYBROWN on March 13, 2012, 07:50:37 PM: It is 26 tpi , or "british standard cycle " same for the axles , common old school bicycle parts as for the early threaded fuel tank cap
Title: Re: Thread Pitch
Post by: Scott on March 14, 2012, 10:21:28 AM: Quote from: LARRYBROWN on March 13, 2012, 07:50:37 PM
It is 26 tpi , or "british standard cycle " same for the axles , common old school bicycle parts as for the early threaded fuel tank cap

Thanks! Would you know any reason why a modern 26tpi crown race and nut I bought would not fit? The original spins right on, The race is pitted and I need to replace it. I bought a 24tpi, 25.4tpi (1mm), and a 26tpi and none fit ???. I guess the diameter might be slightly different. I bought 1". Do you know where I might get the set? I've tried to get stuff from Wayne but I think he just forgot about me. It doesn't have to be original. I have notice that the original has fewer and large balls. And the new sets all has more small balls. What's better (heavy duty)?
Title: Re: Thread Pitch
Post by: LARRYBROWN on March 17, 2012, 09:08:46 PM: you should "procure" a thread pitch gauge to be certain i'm not lieing to you, all head threads I've seen are 26 tpi unless someone molested it by re-tapping it , mine measures 1 inch , maybe you can get a micrometes to be certain of the diameter ,, Wayne has been good as gold to me , He probably forgot He's only human . All the best , Larry Brown.