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· :) you'll live longer
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Discussion Starter · #1 · (Edited)
I have a pair of fork caps that have 37mm threads and these things allow you to adjust your preload if your stock forks don't have it. Mostly for older bikes or entry level bikes, because all supersports will already have preload adjusters on the caps.

looking for $15

I don't know what bike these are from, but the threads are 37mm
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