Vauxhall Combo Owner's Manual page 140

The legally permissible minimum tread
depth (1.6 m m) has been reached when
the tread has worn down as far as one of
1 )
the w ear indicators (TWI ). A number of
wear indicators a re spaced at equal
intervals around the ty re within the tread.
Their position is indicated by markings on
the ty re sidewall.
1) TWI T W I
= read ea r ndicator.
General i nformati on
z The danger of aq uap laning is greater if
the ty res are worn.
z Tyres age, even if they a re used only very
little or not at all. A spare wheel which
has not b een used for six years should be
used only in emergencies; drive slowly
when using suc h ty res.
z Never fit used tyres the prev ious history
and use of w hich y ou do not know.
z So as not to im pair brake cooling , use
only wheel trims app rov ed for use on
your vehicle.
Wheels, tyres
Tyre d esigna tions
Meaning s:
e.g. 175/70 R 14 79 T
175 = Tyre width in mm
70 = Aspect ratio
(ty re height to tyre width in %)
R = Belt ty pe: Radial
14 = Wheel d ia meter in inches
79 = Load ind ex
e. g.: 79 corresponds to 437 kg
T = Speed cod e
S peed code letters:
Q Up to 100 mph (160 km /h)
S Up to 112 mph (180 km /h)
T Up to 118 mph (190 km /h)
H Up to 130 mph (210 km /h)
V Up to 150 mph (240 km /h)
W Up to 168 mph (270 km /h)
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