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Builder's Corner Restoration and preservation. Keep them running in perfect shape. What size is your bottom bracket?

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Old July 2nd, 2011, 10:33 AM   #1
ChiefBroom
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Default Suspension fork question

Is it possible to convert a Judy SL fork with a 1 1/8" steerer to 1" by swapping out the crown or somehow fitting it with a 1" steerer?
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Old July 2nd, 2011, 1:10 PM   #2
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As long as the SL is one with a removable crown/steerer then yes. The later forks had press fit crown/steerer/upper legs, in which case you would have to swap out the whole upper unit for something more appropriate.
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Old July 2nd, 2011, 5:24 PM   #3
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Quote:
Originally Posted by IF52 View Post
As long as the SL is one with a removable crown/steerer then yes. The later forks had press fit crown/steerer/upper legs, in which case you would have to swap out the whole upper unit for something more appropriate.
Maybe a stupid question, but is there a good way to distinguish based on external inspection? Best if I could tell the difference from a photograph (e.g., on eBay).

I'm guessing it would be easier to swap out a whole crown/steerer assembly than try to make a 1 1/8" crown work with a 1" headset (e.g., reduce the diameter of the steerer above the crown). I know a guy who can machine just about anything that is machinable. I doubt, however, that it would be a good idea to try to reduce a 1 1/8" steerer to 1". I weigh 145 lbs. and and not doing gonzo stuff at 57. But I also don't want to worry about a steering snapping if I hit a rock or catch a hard landing.

What's the wall thickness of the steerer on a 1 1/8" Judy SL?

Last edited by ChiefBroom; July 2nd, 2011 at 7:45 PM.
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Old July 2nd, 2011, 5:29 PM   #4
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The Owner's Manual I have for the Judy SL I bought sometime between '96-'98 (possibly'99), includes exploded assembly drawings that show threaded steerer tubes on the XC and DH and threadless on the SL. Is that just random -- i.e., were all models available either way? Or are/were all SL's threadless? Or maybe it was a drawing error.

Last edited by ChiefBroom; July 2nd, 2011 at 7:47 PM.
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