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195R14C what does C stand for?


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According to wikipedea, it is load range

 

The Load Range Letter on light truck tires indicates their ply rating.[8]

Load Range Ply Rating

A 2

B 4

C 6

D 8

E 10

F 12

G 14

H 16

J 18

L 20

M 22

N 24

There is a common misconception that there is a specific equivalence between a tire's Load Range (or ply rating) and the inflation pressure at which it achieves its maximum load.[9] In reality, tires of the same Load Index may require dramatically different pressures to achieve their published load ratings.

This can be seen by consulting the standards published every year by the industry standards group, the Tire and Rim Association. As an example, their 2010 Year Book shows that Load Range C tires may require 35 psi (240 kPa) or 55 psi (380 kPa), Load Range D tires may require 50 psi (340 kPa) or 65 psi (450 kPa), and Load Range E tires may require 65 psi (450 kPa) or 80 psi (550 kPa) to achieve their Load Index and Maximum Loads.[10] This is also the case in the tables published by major tire makers, who do follow these TRA standards and have multiple inflation pressures for the same Load Range in the tires they sell. [11]

 

http://en.wikipedia.org/wiki/Tire_code#Load_range

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Mr Aga [thumbsup] but too deep

Yes C = commercial meaning the tyre made to carry heavier weight and generally commercial (lorry / van ) need this kind of tyre to carry heavy LOAD

for those if only for private use like carrying 3-5 passenger you actually do not needs this but you may have issue when come to Veh inspection.

Generally C tyre can last longer compare to Normal passenger car tyre (without C)

IS also true the pressure does link to the capability of tyre to carry how much load.

If you are not sure , just simply follow what Car manufacturer recommendation you wont go wrong (and you can adjust little from there too)

Exp they stated back tyre pressure 4.5 BAR and you normally do not carry heavy like 600kg load you can lower it down to 3.5 or 3BAR

which can help make your ride more comfort. [bounce2]

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