2025 Year Book Electronic Version via Digital Download (Single User License)

(Single User License) The YEAR BOOK contains all TRA Standards and related information approved by the Association for tires, rims and allied parts for ground vehicles. These Standards include tire designations; tire load ratings and dimensions; approved rim contour(s) and valve(s) for each tire size; rim contour dimensions; valve dimensions; and other data and notes necessary for tire/rim/valve interchangeability.