Originally Posted by mrkott3r
...
Did you have any luck with the seatpost? Mine comes loose every once and a while, no matter how hard I tighten it, serrated edges are ok though.
...
Yep, mine used to slip just about every ride. Take it out, clean it and the inside of the seat tube and give it a hit with hair spray. When you refit it, just push it straight in, don't wiggle it side to side. Mine never slipped again.