hello I JUST BOUGHT A 2003 HERITAGE SOFTAIL WITH 5810.WHEN ITS TIME FOR TIRES IS AVON A GOOD TIRE AND WILL SWITCHING TO RADIALS WORK.I HAD DUNLOP ON MY OTHER HARLEY AND 1500 GOLDWING AND I DID NOT LIKE THEM AT ALL.THEY THUMPED FOR 2 MILES WHEN COLD. AND MY AVONS ON MY SECOND WING NEVER DID. THANKS ALOT GARY