Aipros

Good to Know

Markers and indexes

 

Here you can find clarifications about the numbers and letters on the side of a tyre.
 
For instance: 195/65 R15 90H
 
  • 195 – tyre width in millimetres
  • 65 – tyre height (profile) expressed as a percent from the width. In a given case, it is 65% from 195 mm
    or 126.8 mm.
  • R – radial tyre
  • 15 – diameter of the alloy wheel in inches
  • 90 – load index or allowed load per one wheel of the vehicles (see table “Load indexes”)
  • H – speed index (see table “Speed indexes”)

Table: LOAD INDEXES
LiKgLiKg
7640093650
7741294670
7842595690
7943796710
8045097730
8146298750
8247599775
83487100800
84500101825
85515102850
86530103875
87545104900
88560105925
89580106950
90600107975
916151081000
926301091030
Table: SPEED INDEXES (km/h)
N140
P150
Q160
R170
S180
T190
U200
H210
V240
Z>240
W270
Y300

 

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