Studs ready
A variety of tyres (usually winter tyres) that are not equipped with studs, but have slots for their installation. The meaning of this decision is that, firstly, such tyres are typically cheaper than similar models with pre-installed factory studding, and secondly, the owner is given certain freedom of choice — to stud or not to stud the tyre. In fact, it should be noticed that tyres created
for a stud are initially designed for operation with studs, respectively, without them, they will behave worse than ordinary non-studded ones. In addition, studs made after purchase take hold much worse than factory ones — with more or less intensive use, studs tend to fall out, especially if the tyre does not stud right away, but after some run.
Fuel efficiency
The rolling resistance rating that the tyre corresponds to. The higher this figure, the lower the resistance, the less fuel is spent to overcome it and the more economical the tyre is. Efficiency indices are denoted by letters of the Latin alphabet in descending order of efficiency:
A(highest efficiency),
B,
C,
D,
E,
F,
G(lowest efficiency).
With other things being equal, more economical tyres tend to cost more, but the difference is offset by fuel economy.
Wet Grip
An index that determines the overall performance of a tyre on wet pavement. Lettered from
A(highest) to
G(lowest); intermediate options, respectively —
B,
C,
D,
E and
F.
The higher this indicator, the stronger the tyre grips to the wet road, the more efficient and safer it will be in difficult weather conditions. At the same time, it is worth noting that a low grip index does not mean unsuitability for driving in rain or snow — you just need to be more careful using such tyres. Conversely, a high index does not relieve the driver of the need to be careful in difficult weather conditions.
Noise Level
The average noise level created by a tyre while driving. The lower this indicator, the more comfortable this model will be, the less additional noise it will create.
Note that EU rules provide 3 categories of tyres in terms of noise.
“Quiet” are considered models with an index of up to 68 dB,
“medium” — 68 – 71 dB,
“loud” — 72 dB and above.
