• Toyo Open Country H/T

    Toyo Open Country H/T
    255/55R18 109V RF
    All-Season/Highway Terrain

    BSW M+S

    640/A/A

    Part number: 0166033970233400318

    Sizes
255
Section width 		55
Aspect ratio 		R
Construction 		18
Rim diameter 		109
Load index 		V
Speed Rating 		RF
Load range 		TL
TL/TT
Specs Code/Value Description
Section width Section width
 255 (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
 18 (inch) 		Diameter of rim seat supporting the tire bead.
Load index Load index
 109 (1030kg/2270lbs) 		Maximum load each tire is designed to carry when inflated to the recommended pressure.
Speed Rating Speed Rating
 V (240km/h/149mph) 		Maximum speed at which a tire can roll with the load indicated in its load index.
Load range Load range
 RF (4 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
 362570 		Alpha-numeric designation assigned by a manufacturer to uniquely identify a tire product.