I have an Audax MK3, the seat fortunately is at my correct height but it is stuck in the tube. I have added a lot of penetrating oil but probably due to tube length it wont budge. As a final method I am considering drilling a couple of 9/10mm holes through the tube to allow me getting a bar through for added leverage. Has anyone had this problem and solved it. I don’t want to heat it up as it would damage the pain. The frame isn’t very old.
