285
Section width 		70
Aspect ratio 		R
Construction 		19.5
Rim diameter 		150
Load index 		148
Load index dual 		J
Speed Rating 		J
Load range 		TL
TL/TT
Specs Code/Value Description
Section width Section width
 285 (mm) 		The distance between the outside of a tire sidewalls, not including any lettering or designs.
Aspect ratio Aspect ratio
 70 (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
 19.5 (inch) 		Diameter of rim seat supporting the tire bead.
Load index Load index
 150 (3350kg/7390lbs) 		Maximum load each tire is designed to carry when inflated to the recommended pressure.
Load index dual Load index dual
 148 (3150kg/6940lbs) 		Maximum load each tire is designed to carry when inflated to the recommended pressure in dual operation.
Speed Rating Speed Rating
 J (100km/h/62mph) 		Maximum speed at which a tire can roll with the load indicated in its load index.
Load range Load range
 J (18 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
 121945 		Alpha-numeric designation assigned by a manufacturer to uniquely identify a tire product.