• Cooper Discoverer A/T3

    Cooper Discoverer A/T3
    LT305/55R20 121/118S E
    All-Season/All-Terrain

    BSW M+S

    Part number: 0034005790191700073

    Sizes
305
Section width 		55
Aspect ratio 		R
Construction 		20
Rim diameter 		121
Load index 		118
Load index dual 		S
Speed Rating 		E
Load range 		TL
TL/TT
Specs Code/Value Description
Section width Section width
 305 (mm) 		The distance between the outside of a tire sidewalls, not including any lettering or designs.
Aspect ratio Aspect ratio
 55 (percentage) 		The aspect ratio determines the height of the sidewall and is a percentage of the section width.
Construction Construction
 R (Radial) 		Radial construction tire.
Rim diameter Rim diameter
 20 (inch) 		Diameter of rim seat supporting the tire bead.
Load index Load index
 121 (1450kg/3195lbs) 		Maximum load each tire is designed to carry when inflated to the recommended pressure.
Load index dual Load index dual
 118 (1320kg/2910lbs) 		Maximum load each tire is designed to carry when inflated to the recommended pressure in dual operation.
Speed Rating Speed Rating
 S (180km/h/112mph) 		Maximum speed at which a tire can roll with the load indicated in its load index.
Load range Load range
 E (10 ply) 		Maximum load capacity the tire is engineered to handle at certain inflation pressures. It also define the tire toughness and the strength of the sidewall.
TL/TT TL/TT
 TL (Tubeless) 		Tire specifically designed for fitting to appropriate wheel rims without an inner tube.
Manufacturer part number Manufacturer part number
 51733 		Alpha-numeric designation assigned by a manufacturer to uniquely identify a tire product.