Lost the thread

Practical Sportsbikes (UK) - - On the Bench -

Q: I re­moved the fork bot­toms from my Kawasaki ZX-7R’S front end to have the stan­chions rechromed.

How­ever both fork bot­toms have lost around three to 4mm of thread. The stan­chions have 15mm of thread. Are the bot­toms still OK to be re­fit­ted?

Also, what is the best way to fin­ish the bot­toms be­cause of the heat dam­age to the paint.

Dave Shad­dob, PS Face­book Group

A: Dar­ren Wnukoski says: You won’t find any sus­pen­sion spe­cial­ist who would risk say­ing that these are OK to be re-used. Some of the lever­age on the tube has been lost, so it is more likely to work loose. All that said, I’ve seen worse than these re-used. Plus, even with some thread gone, they still have more sup­port than most mod­ern de­signs. You need to take your own view – and I’m afraid you’re on your own with that. If you do re-use, don’t for­get the thread lock. For the re­fin­ish­ing, I’d go for Cer­akote as it’s tough, or good old paint. Pow­der­coat has come on a lot in re­cent years but this is one ap­pli­ca­tion where I feel it’s still a lit­tle too thick.

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