Originally Posted by
drlogik
When I loosened the seat my blue Sharpie mark was about 1/4" below the top of the seat tube. I thought the line had just rubbed off. Got the seat post where it was supposed to be tightened the bolt and PRESTO!! My old bike was back!
Vinyl tape on one side of seat post flush with top of seat tube to mark position, tape ~1/8” above the top to see if post has slipped.