§571.139. Standard No. 139; New pneumatic radial tires for light vehicles. — Inbound Citations

(2) (For multipurpose passenger vehicles, trucks, buses, trailers, and motorcycles) The manufacturer may, at its option, list more than one GVWR-GAWR-tire-rim combination on the label, as long as the listing contains the tire-rim combination installed as original equipment on the vehicle by the manufacturer and conforms in content and format to the requirements for tire-rim-inflation information set forth in Standard Nos. 110, 120, 129 and 139 (§§ 571.110, 571.120, 571.129 and 571.139 of this chapter).

(b) Its maximum permissible inflation pressure shall be either 32, 36, 40, or 60 psi, or 240, 280, 300, 340, or 350 kPa.

(a) Curb weight;

(c) S4.2.2.3 (Tubeless tire resistance to bead unseating).

S1. Scope. This standard specifies tire and rim selection requirements, rim marking requirements and motor home/recreation vehicle trailer load carrying capacity information.

(c) It shall, before being subjected to either the endurance test procedure specified in S5.4 or the high speed performance procedure specified in S5.5, exhibit no visual evidence of tread or carcass separation, chunking or cracking.

(b) Contained in publications, current at the date of manufacture of the tire or any later date, of at least one of the following organizations:

(6) S4.1.2 A listing compiled in accordance with paragraph (a) of S4.1.1 need not include dimensional specifications or a diagram of a rim whose dimensional specifications and diagram are contained in a listing published in accordance with paragraph (b) of S4.1.1.

S4.2. Information contained in a publication specified in S4.1.1(b) that lists general categories of tires and rims by size designation, type of construction, and/or intended use, is considered to be manufacturer's information required by S4.1 for the listed tires, unless the publication itself or specific information provided according to S4.1(a) indicates otherwise.

S5. General requirements

S5.1. Size and construction. Each tire shall fit each rim specified for its size designation in accordance with S4.1.

S5.2. Performance requirements. Each tire shall conform to each of the following:

(35) ASTM E1337-19, “Standard Test Method for Determining Longitudinal Peak Braking Coefficient (PBC) of Paved Surfaces Using Standard Reference Test Tire,” approved December 1, 2019, into §§ 571.105; 571.121; 571.122; 571.126; 571.127; 571.135; 571.136; 571.500.

(c) Its maximum permissible inflation pressure shall be 240, 280, 300, 340, or 350 kPa.

(c) Its maximum permissible inflation pressure shall be 240, 280, 300, 340, or 350 kPa.

(c) Its maximum permissible inflation pressure shall be 240, 280, 300, 340, or 350 kPa.

(c) Its maximum permissible inflation pressure shall be 240, 280, 300, 340, or 350 kPa.

(c) Its maximum permissible inflation pressure shall be 240, 280, 300, 340, or 350 kPa.

(c) Its maximum permissible inflation pressure shall be 240, 280, 300, 340, or 350 kPa.

(c) Its maximum permissible inflation pressure shall be 240, 280, 300, 340, or 350 kPa.

(c) Its maximum permissible inflation pressure shall be 240, 280, 300, 340, or 350 kPa.

(c) Its maximum permissible inflation pressure shall be 240, 280, 300, 340, or 350 kPa.