The purpose of this information report is to establish dynamic indices which are to be used only for calculating the travel speed of the agricultural tractor during worldwide homologation procedures.
SAE J1261-1984 history
2009SAE J1261-2009 Agricultural Tractor Tire Dynamic Indices
1984SAE J1261-1984 Agricultural Tractor Tire Dynamic Indices
1979SAE J1261-1979 Agricultural Tractor Tire Dynamic Indices