This recommended practice applies to the laboratory measurement of rolling resistance of pneumatic passenger car tires designed primarily for normal highway service. The procedure applies only to the steady-state operation of free-rolling tires at zero slip and inclination angles; it includes the following three basic methods: Force Method-Measures the reaction force at the tire spindle and converts it to rolling resistance. Torque Method-Measures the torque input to the test machine and converts it to rolling resistance. Power Method-Measures the power input to the test machine and converts it to rolling resistance.
SAE J1269-1984 history
2020SAE J1269-2020 Rolling Resistance Measurement Procedure for Passenger Car, Light Truck, and Highway Truck and Bus Tires
2019SAE J1269-2019 Rolling Resistance Measurement Procedure for Passenger Car, Light Truck, and Highway Truck and Bus Tires
2006SAE J1269-2006 Rolling Resistance Measurement Procedure for Passenger Car, Light Truck, and Highway Truck and Bus Tires
2000SAE J1269-2000 Rolling Resistance Measurement Procedure for Passenger Car, Light Truck, and Highway Truck and Bus Tires
1987SAE J1269-1987 Rolling Resistance Measurement Procedure for Passenger Car, Light Truck, and Highway Truck and Bus Tires R(2000)
1985SAE J1269-1985 Rolling Resistance Measurement Procedure for Passenger Car and Light Truck Tires
1984SAE J1269-1984 Rolling Resistance Measurement Procedure for Passenger Car Tires