B'bug, Obviously I don't know your friend, though I've ridden with folks like him. You'd know better what is the cause or cure for this.

Sometime the rider is plain ol' stubborn. And sometimes not everyone has the mind/body connection to make the jump to learn gearing, spinning.

I find that saying. lecturing, finger pointing does not work well for many. Heck, it does not work at all. Showing works. Follow me, ride like this But then he has to want to follow another rider. There again not all can see one thing and then make the connection to do the motion.

I'm not saying he's dumb, uncoordinated, it's just a skill not all have or learning style.

I'm very picky about who I ride with. Meanwhile, invite him to the recovery meal