Originally Posted by
big john
You'd have to stop to adjust the seat height.
you just have to learn to adjust your seat post on the fly. Been doing it for years on my old mountain bikes until I got my new bike with a dropper post.
Another solution would be to get an old Hite Rite by Breezer. It clamps on to your seat post and seat post quick release. When you loosen the quick release you can drop your seat and then tighten it to hold your seat down. To then raise your seat you again loosen the quick release and the spring will raise your seat back up to your desired height. All is this on the fly of course.