Un ifor mT ir eQ uality Grading St andards: a
unifor ms ta ndar dtog ra de th eq ualit yoft ires
wit hr egar dtot re ad qu alit y, tir et ra ction and
te mp eratur ec haracteristics. The qu alit yg ra ding
assessment is made by th em anufacturer fo llow‐
ing specifications from th eU .S. go ve rn ment. The
qu alit yg ra de of at ir eisi mp ri nted on th es ide
wa ll of th et ire.
Re commende dt ir ep re ssu re : th er ecommen‐
ded tir ep re ssur eist he tir ep re ssur es pecified
fo rt he tires mounted to th ev ehicle at th ef ac‐
to ry .
The tir ea nd information ta ble con ta ins th er ec‐
ommended tir ep re ssur ef or cold tires, th em axi‐
mum permissible load and th em aximum permis‐
sible ve hicle speed.
The tir ep re ssur et able con ta ins th er ecommen‐
ded tir ep re ssur ef or cold tires under va ri ous
operating conditions, i.e. loading and/or speed
of th ev ehicle.
Increased ve hicl ew eight due to optional
equipment: th ec ombined we ight of all st andard
and optional equipment av ailable fo rt he ve hicle, re ga rd less of whe th er it is actually ins ta lled on
th ev ehicle or not.
Rim: th ep ar toft he wheel on whic ht he tir ei s
mounted.
GA WR (Gross Axl eW eight Ra ting): th eG AW R
is th em aximum gross axle load. The actual load
on an axle mus tn ev er exc eed th eg ro ss axle
we ight ra ting .T he gross axl ew eight ra ting can
be fo und on th ev ehicle identification plat eo n
th eB ‑pillar on th ed ri ve r's side.
Speed ra ti n
g: th es peed ra ting is pa rt of th et ire
identification .Its pecifies th es peed ra ng ef or
whic hat ir eisa ppr ove d.
GV W( Gross Ve hicl eW eight): th eg ro ss ve hicle
we ight comprises th ew eight of th ev ehicle
including fuel, to ols, th es par ew heel, accesso‐
ri es ins ta lled, occupants, luggag ea nd th et ra iler
dr aw bar nose we ight ,ifa pplicable. The gros s
ve hicle we ight mus tn ot exc eed th eg ro ss ve hicle
we ight ra ting GV WR as specified on th ev ehicle
identification plat eont he B‑pillar on th ed ri ve r's
side.
GV WR (Gross Ve hicl eW eight Ra ting): th e
GV WR is th em aximum permitted gross we ight of th ef ully laden ve hicle (weight of th ev ehicle
including all accessories, occupants, fuel, lug‐
ga ge and th et ra iler dr aw bar nose we ight if appli‐
cable). The gross ve hicle we ight ra ting is speci‐
fi ed on th ev ehicle identification plat eont he
B‑pi llar on th ed ri ve r's side.
Maximum we ight of th el aden ve hicle: th e
maximu mw eight is th es um of th eu nladen
we ight of th ev ehicle, th ew eight of th ea ccesso‐
ri es, th em aximum load and th ew eight of
optional equipment ins ta lled at th ef actor y.
Kilopasca l( kP a): metric unit fo rt ir ep re ssu re .
6.9 kP ac or re sponds to 1p si .A no th er unit fo r
tir ep re ssur eisb ar .1 00 kilopasca l( kPa) equals
1b ar.
Load index: in addition to th el oad-bearing
index, th el oad inde xm ay also be imprinted on
th es ide wa ll of th et ire. This specifies th el oad-
bearing capacit y
of th et ir em or ep re cisel y.
Cur bw eight: th ew eight of av ehicle wit hs ta nd‐
ar de qu ipment includin gt he maximum capacity
of fuel, oil and coolant. It also includes th ea ir
conditionin gs ys te ma nd optional equipment if Wheels and tires 329
