Metzeler Unicross 90/90 - 21 M/C 54M M+S TT F

90
Section width 		90
Aspect ratio 		-
Construction 		21
Rim diameter 		54
Load index 		M
Speed Rating 		TT
TL/TT
Specs Code/Value Description
Section width Section width
 90 (mm) 		The distance between the outside of a tire sidewalls, not including any lettering or designs.
Aspect ratio Aspect ratio
 90 (%) 		The aspect ratio determines the height of the sidewall and is a percentage of the section width.
Construction Construction
 - (Bias-Ply) 		construction_description_-
Rim diameter Rim diameter
 21 (") 		Diameter of rim seat supporting the tire bead.
Load index Load index
 54 (212kg/465lbs) 		Maximum load each tire is designed to carry when inflated to the recommended pressure.
Speed Rating Speed Rating
 M (130km/h/81mph) 		Maximum speed at which a tire can roll with the load indicated in its load index.
TL/TT TL/TT
 TT (Tube-type) 		Tire specifically designed for fitting to appropriate wheel rims with an inner tube.
Manufacturer part number Manufacturer part number
 1679000 		Alpha-numeric designation assigned by a manufacturer to uniquely identify a tire product.