Eddy Merckx could definitely have used one (although I think what he would have really benefited from, are modern fit options).
Originally Posted by
shouldberiding
I'd like to see video of somebody reaching between their legs to adjust the seatpost while riding. Without crashing. Bonus points for doing it in a field of riders.
I have adjusted my Thomson seat post while riding numerous times. Don't make me post the video of the guy adjusting his rear derailleur barrel adjuster while riding.