195 – Section Width
It is the tyre width in mm. It is measurement of the sidewalls of a tyre that starts from the surface where it connects with the rim to the part where the tread begins.
55 – Aspect Ratio
It is the height of the sidewall expressed as a percentage of the tread width. Here, an aspect ratio of 55 indicates that the section height of the tyre is 55% of the section width of the tyre.
R – Construction
R represents the Radial contruction of the tyre. You will also find the letter B written on several tyres that represents the cross ply construction type.
16 – Rim Diameter
It is the inside diameter of the tyre. It indicates the diameter of the rim or rim height and is measured in inches.
87 – Load Index
It is the maximum weight limit that a tyre can carry. It is represented by a two digit or three digit numbers.
V – Speed Rating
It is the maximum speed that the car can maintain with the given tyres and is denoted by English Alphabets.