I HAVE JUST SOLD MY BUGGY AND PURCHASED AN ELECTRIC TROLLEY ON DOCTORS ADVICE,OUR GREEN KEEPERS POLICY WHEN TROLLEYS ARE ALLOWED IN THE WINTER THEY HAVE TO BE FITTED WITH HEDGHOG WHEELS,IF I USE THESE ON MY MOTO CADDY TROLLEY IT WILL VOID MY WARRENTY ANG IN FAIRNESS I KNOW OF AT LEAST 5 FELLOW MEMBERS WHO HAVE BURNT OUT THEIR TROOLEY MOTORS SUSPECTING THESE WHEELS..ANY FEED BACK ON ADVANTAGES TO THE COURSE FOR THE USE OF THESE WHEELS AND THE EFFECT ON THE TROLLEY MOTORS