Porsche 911 CARRERA 4 -, Owner'S Manual

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Example of Inscription
Inscription on radial tire
A Tire size
Example: P 295/30 ZR 19 100 Y
– P - The tire is designed for Passenger vehicle.
This information is not included on all tires.
–
295
- Indication of tire width in mm
–
30
- Indication of tire height to tire width ratio in
percent
– ZR - code letter for radial tires for speeds
above 150 mph / 240 km/h There are cur-
rently no standards concerning tire strength at
speeds above 150 mph (240 km/h).
– R - Belt type code letter for radial
– 19 - Indication of rim diameter in inches
–
100
- Load capacity coefficient
–
Y
- Speed code letter
–
XL (Extra Load)
- Tire with increased load
rating
B TIN (Tire Identi  cation Number)
Example: DOT xx xx xxxx xxxx
–
DOT - The DOT symbol indicates that the
tires comply with the requirements of the US
Department of Transportation and provides
information about:
– first two-digit code means manufacture’s
identification mark.
– second two-digit code means tire size.
– third four-digit code means tire type code.
276
Practical Tips, Emergency Service