the top nut has two threaded holes with lock nuts in it to secure the top nut onto the fork shaft. those two little lock nuts compress an ring, wich is built into the top nut, onto the threads of the fork threads
@germanmarc started
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the top nut has two threaded holes with lock nuts in it to secure the top nut onto the fork shaft.
those two little lock nuts compress an ring, wich is built into the top nut, onto the threads of the fork threads