Originally Posted by
Positron400
I am fairly certain, there are a good few centimeters still in the frame - so it wasnt too concerning
About 3 or 4 inches would be my minimum, and with the seat up that high, I'd be more happy with about 6 inches.
I don't see a line, but many of the aero seatposts aren't very tall, leading to the speculation that not much is left in the frame.