Rolling Circumference Index Groups for Radial Tractor Drivetires
This SAE Standard is established for the following purpose: a. simplify the application of radial drive wheel tires to agricultural vehicles especially those with multiple drive axle having tires of different sizes; and b. provide a pattern to combine similar sized tires into Rolling Circumference Index groups with uniform spacing between groups.
Rationale: The figures in the standards do not include all products. They should be removed as the Tire and Rim Association publishes the tire's RCI in its annual year book. Bias drive tires are not included in the currrent standard