Competitors are required to compete on slick tires that are purchased from the Challenge of the Americas entry. Micro Rok, & Mini Rok are limited to one set of four (4) slick tires per weekend. Drivers in all other classes will use one new set each race day.
Bridgestone Rok YLR tires are the spec tire for all classes. The spec rain tire for all classes is the Bridgestone YLP rain tire. Rain tires are the responsibility of the competitor. The series will not have a supply of rain tires for competitors.
Dry and Wet tires must be used as directional arrows indicate.
In CotA, tires must be new the first time a kart is presented for competition. No “scuffed” tires allowed. No modification of tires, including tire treatments or heating, is allowed. The series technical staff may check tire temperatures before karts roll onto the track.
Senior Rok and Junior Rok competitors must pick up their tires on the morning of each race day. All other classes may pick up their tires beginning Friday afternoon.
Damaged tires may only be replaced at the discretion of the series Tech Director