Polishing lower fork legs (internal)

[Paul552]

Putting a set of 86 model forks on a 84 (disk brake) CR80

Drama is I have good Chrome on the upper tubes 84 and totally f'd 86 tubes.

I can't see why I can't use the 84 upper tubes in the 86 bottom tubes.

The 86 bottoms aren't great inside so I want to polish them up before using them
I was going to put them up in the lathe and scotch brite them.

Anyone else done this? Any better ideas ?

[SlideRulz]

Easy way out is to cut a slot in the end of a bit of round bar, 10-12mm.
Slip a section of fine emery strip into the slot and wrap around, using kero or some type of cutting fluid and your hand drill on a slow speed and correct direction, hone out the inner leg.
Rinse and repeat.

[oldyzman]

You can get a large phillips head screwdriver or a piece of 12mm steel round bar tape the start of a bit of scotchbrite to it then wrap it round in the right direction put that into a pistol drill, you can use that to hone the inside of the lowers.
brett

[oldyzman]

Similar to sliderules, we were typing at the same time....

[bigk]

Ball hone.

[Slakewell]

You can more or less do the same thing with the lathe except you turn the fork leg with the lathe and use the slotted bar on the tool post.

[evo550]

Have you checked fork diameter between the two ?