Fork Switching

[handyandy1100]

I have an older front fork (old school style, square shoulders) that I would like to use on a newer frame. The steer tube on the old fork is about an 1/8" too long to use on the new frame. Would it be feasible to make a spacer to go on the steer tube under the the lower bearing race? Or do I need to bite the bullet and get a tap to extend the threads and cut the tube?

Thanks!

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[G-Matt]

I give the spacer a shot fist being it’s only 1/8” . Then move on to plan B thread & cut


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[user 135]

Easier method , just add an extra spacer or two between the top nut (locknut) and threaded race.

 

[Wildcat]

Are there enough threads to tighten the race? I would tap the threads if need be.

I agree with cman, the spacer should be at the top, there's too much stress at the fork crown for a spacer, you'll get a bend in the forks. I've done that before.

 

[handyandy1100]

Yeah, the there's not enough threads to tighten the top race. But it won't take much to do it. Also contemplating hogging out a few threads in the bottom of the top race to make it work. Guess if I'm gonna do the swap I better get a tap and do it right.

 

[The Renaissance Man]

You can get a die for cheap on epay.

 

[GuitarlCarl]

I have put a thick spacer from a Schwinn exerciser bike under the bottom race. When you lift the race up you'll probably have to fab a shim up...

That spacer there is about an inch and a quarter...

Carl.

 

[Dizzle Problems]

I’m with @cman on the spacers.
I don’t like cutting steerers in case said fork finds another frame at some point.
As far as adding threads, gettin a die would be rad. Just make sure the tpi is correct. If you have a relationship with a local shop, it probably b wouldn’t cost ya much to add some threads, if cost at all.