*** This tire is sold out in most sizes. It has been replaced with the
RT-615K. For those of you who are left with two good RT-615's and don't want to buy a full set of 615K's... Try running your left-over 615's in the front and the 615K's in the rear.
Motorsports grade cap compound maintains grip over a wide range of operating temperatures.
Increased internal void ratio delivers enhanced wet grip and aquaplane resistance under competition conditions.
8/32nd molded tread depth reduces "squirm" when new while providing predictable mileage for street use.
200AA UTQG qualifies for SCCA Street Tire Class competition.