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Comparison Uniroyal RainExpert 3 155/70 R13 75T vs Barum Brillantis 2 155/65 R14 75T

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Uniroyal RainExpert 3 155/70 R13 75T
Barum Brillantis 2 155/65 R14 75T
Uniroyal RainExpert 3 155/70 R13 75TBarum Brillantis 2 155/65 R14 75T
from $29.20 up to $38.32
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from $23.63 up to $33.96
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Seasonsummersummer
Product Typepassenger car / SUVpassenger car / SUV
Width155 mm155 mm
Aspect ratio70 %65 %
Tyre inner diameter13 "14 "
Load index7575
Speed ratingTT
Orientationnon-directionalnon-directional
Pattern Symmetryasymmetricasymmetric
Fuel efficiencyDE
Wet GripBC
Noise Level70 dB70 dB
Added to E-Catalogmarch 2015february 2012

Aspect ratio

Tyre aspect ratio. This parameter is usually expressed as a percentage of the width, since it is not the height itself that is of practical importance, but its ratio with the nominal section width.

In general, the lower the ratio, the more stable the tyre, the better it is suitable for high-speed driving on flat roads. Higher ratio, in turn, work better on rough surfaces and over obstacles, making them good for bad roads and off-road. If we talk about specific numbers, nowadays, the following options are spread on the market:

— Low profile tyres: 25%, 30%, 35%, 40% ;
— Medium profile : 45%, 50%, 55%, 60% ;
— High profile : 65%, 70%, 75%, 80%, 82%, 85%, and 90% or more.

Tyre inner diameter

Tyre inner diameter in inches. The key parameter that determines the possibility of installing a tyre on a car: the tyre diameter must match the diameter of the rim. It is worth noting that some vehicles have +/- 1 inch diameter tolerance; this point should be clarified separately in each case.

In modern passenger vehicle tyres, the following rim diameters are most widely used: 12", 13", 14", 15", 16", 17", 18", 19", 20", 21", 22", 23", 24".

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.