{205/55 R 16 91 W}
Tyre width:- 205 in millimetres.
Tyre Profile:- 55.
R:- It is not required.
16:- Tyre size/ the diameter of the tyre inner
rim in inches.
91 :- Load rating.
W :- Speed rating.
Car tyres load index rating:-
Load index - Max. Load
81 - 462
82 - 475
85 - 515
86 - 530
87 - 545
88 - 560
90 - 600
92 - 630
Car tyres speed symbol rating:-
Car tyres speed symbol rating:-
Speed Symbol - Max. Speed
N - 140
P - 150
Q - 160
R - 170
S - 180
T - 190
H - 210
V - 240
W - 270
Y - 300
Bike Tyres Sizes:-
{ 180/55 Z R 17 M/C [73W] TL}
180:- Width of the tyre in millimetres
55:- Tyre profile, indicate the aspect ratio or height. Represented the % of the width, for ex- Height of the tyre is 55% of 180mm w, which equates to 99mm.
Z:- It indicates what speed the tyre is capable of being taken over. It doesn’t tell us the max. Tolerable speed of the tyre that comes later in the code in the bracket.
R:- Construction type of the tyre. It has radial construction.
17:- Tyre size, dia. Of the tyre in inches.
M/C:- It is suitable for a bike.
73:- It represents the load index of the tyre, which specifies the max. load the tyre can carry.
W:- Max. capable speed.
TL:- Tubeless tyre, if you see `TT’ then it is a tube-type tyre.
Load Index - Weight in kg:-
20 - 80
22 - 85
24 - 85
26 - 90
28 - 100
30 - 106




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