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  1. #1
    Schwinnasaur Schwinnsta's Avatar
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    Rear fork Rotation on F frame Moulton question

    Does the through bolt rotate with forks or do the forks just rotate on the
    through bolt?

    I asked this question on the Yahoo Moulton Group but did not get any responses.

    On the surface it seems like a dumb question but I am not sure. My guess is that axel rotates. Anyone know?

  2. #2
    Caltrain Commuter
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    Quote Originally Posted by Schwinnsta View Post
    Does the through bolt rotate with forks or do the forks just rotate on the
    through bolt?
    The axle rotates (unless it has seized). The axle is a rod threaded at both ends and captured with a serrated lockwasher and a nut at each end. If the axle were intended to rotate, Moulton wouldn't have used a lockwasher. There are two nylon bushings between the axle and the frame, which presumably is where the rotation occurs. In F-frames that have seized axles, the rear forks will rotate around the axle which can cause ovalized holes and resultant play in the rear suspension.

  3. #3
    Caltrain Commuter
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    Quote Originally Posted by bromptonS8 View Post
    The axle rotates (unless it has seized). The axle is a rod threaded at both ends and captured with a serrated lockwasher and a nut at each end. If the axle were intended to rotate, Moulton wouldn't have used a lockwasher. There are two nylon bushings between the axle and the frame, which presumably is where the rotation occurs. In F-frames that have seized axles, the rear forks will rotate around the axle which can cause ovalized holes and resultant play in the rear suspension.
    Sorry - just wanted to clarify - I meant to write that the axle does not rotate relative to the rear forks, but it does rotate relative to the main frame. The lockwashers are intended to keep the axle fixed relative to the rear forks and the nylon bushings allow it to rotate relative to the frame.

  4. #4
    Schwinnasaur Schwinnsta's Avatar
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    Thanks that answers a couple of questions. I thought that possiblly the bushes rotate in the tubes that hold them. I was also uncertain whether I have nylon or bronze bushes. (64 Huffy Mouton.)

    Responses are coming in on Yahoo, now too.
    Last edited by Schwinnsta; 08-24-09 at 06:06 PM.

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