Above: The heavy weight of the cars on their wide steel casters made it customary for Pretzel rides to be installed on wooden floors. Concrete wouldn't hold up for long under such an unforgiving burden. So how could the cars be made to traverse Spook-A-Rama's new concrete floor without damage? One solution would have been to lay wooden or metal strips under the wheels along the entire length of the ride, a daunting task given the relentlessly twisting path of the ride's track layout.
The answer was to have all the car wheels bonded with polyurethane tires. After ascertaining a number of factors including the load weight of the cars and the hardness of the floor surface to determine the type and density of the urethane, the job was done by Sunray Polyurethane Products, Inc. of Rutherfordton, NC. The two photos above show the new polyurethane tires fitted onto the rear drive casters.