• Sumitomo ST909

    Sumitomo ST909
    255/70R22.5 140/137M H
    Truck and Bus
    Drive
    Regional

    BSW

    Tread depth:26/32nds
    max_load: 2500 kg/5510 lb
    max_load_dual: 2300 kg/5070 lb
    max_speed: 130 km/81 mi

    info
    type
    Drive
    Regional

    Part number: 0155032280410501169

    Sizes
255
Section width 		70
Aspect ratio 		R
Construction 		22.5
Rim diameter 		140
Load index 		137
Load index dual 		M
Speed Rating 		H
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
 70 (%) 		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
 22.5 (") 		Diameter of rim seat supporting the tire bead.
Load index Load index
 140 (2500kg/5510lbs) 		Maximum load each tire is designed to carry when inflated to the recommended pressure.
Load index dual Load index dual
 137 (2300kg/5070lbs) 		Maximum load each tire is designed to carry when inflated to the recommended pressure in dual operation.
Speed Rating Speed Rating
 M (130km/h/81mph) 		Maximum speed at which a tire can roll with the load indicated in its load index.
Load range Load range
 H (16 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
 5533087 		Alpha-numeric designation assigned by a manufacturer to uniquely identify a tire product.