Re: 26" La Jolla
I had a rear mounted friction drive on my La Jolla....
It was a huge Titan 50cc hanging off it and never let me down. The bike actually kept up well and never let me down.
Quite comfortable for me being 6' 2" tall as well!
Rear hub needed regreasing at about ~100 miles or so, but very easily handled in less then 30 minutes time.