If this picture is of the One Week Wonder, they were not retreads. They were either Goodyear flight specials or Michelin Aviators. They did not come from Van's as part of the kit.
Built RV-4, RV-6, 2-RV-10's, RV-7A, RV-8, Prescott Pusher, Kitfox Model II, Kitfox Speedster, Kitfox 7 Super Sport, Just Superstol, DAR, A&P/IA, EAA Tech Counselor/Flight Advisor, CFII-ASMEL/ASES
Kitplanes "Checkpoints" monthly column
EAA Homebuilt Council Chair/member EAA BOD