New tires with asymmetric tread sets standard for tires. Grooved outer circumferential rings for good cornering performance and unique patterned inner blocks for maximum tractive and braking force. R Series: For RCP and similar foam track, they have excellent tire life with very high grip. NEW items number RR1106 R = for RCP track R = for Rear tire 11 = Pattern number 06 = Tire Degree | 
