RE: Trexler tire question
I twist the tube as I wrap it around the hub.
They don't like high speed take offs & landings as centrifugal force will sling the tube out . Easiest way to color the wooden hub is marking pen or I sand them nice & rounded & monocoat them . Be sure & use the Trexler air pump to inflate & when not in use be sure & let the air out . Keep them clean also & they will last a long time . Good luck , Max H.