Tyre-marking

1.	205/55R16 91V	205	Nominal Section width in mm.
		55	Nominal Aspect ratio (Tyre height is 55% of tyre width).
		R	Symbol for radial tyre.
		16	Rim diameter Code (in inches).
		91	Load Index “91” = max. load of this tyre is 615 kg (see table below).
		V	Speed Symbol, indicating max. speed V=240 km/h/ 50 mph (see table below). Other information may be added after the size marking: *“TUBELESS”* for tubeless tyres, *“REINFORCED”* or *“EXTRA LOAD (XL)”* for reinforced tyres, *“M+S”* for winter tyres. Snowflake designation (in USA and Canada): This additional marking on an M+S tyre shows that the tyre meets legally prescribed test criteria and ensures good winter properties.
2.	SSR		Special designation SSR for runflat tyres (Self Supporting Runflat )
3.	TUBELESS		tubeless. *TUBE TIPE* tyres must be mounted with tubes.
4.	E4		Marking indicating accordance with ECE regulations. The number after the E in the circle indicates the country of homologation. E4 (4=Netherlands)
5.	227293		Approval number acc. to relevant ECE regulation
6.	2206		Production code (“22” means 22nd week, “06” means 2006). (Until 1999, a triangle stood after the third digit, e. g. “9B” for 1999).
7.	DOT		DOT = Department of Transportation, USA.
8.	TWI		TWI = Tread Wear Indicator. Cross ribs evenly spaced around the circumference of the tyre in the longitudinal tread grooves and becoming exposed when the remaining tread depth is down to 1.6 mm.
9.	Made in...		Marking showing the country of origin.

The Load Index is a numerical code associated with the maximum load a tyre can carry.

The Speed Symbol indicates the maximum speed at which the tyre can carry a load
corresponding to its Load Index.