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Comparison Pirelli PZero 285/40 R21 109Y vs Pirelli Scorpion Verde 285/40 R21 109Y

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Pirelli PZero 285/40 R21 109Y
Pirelli Scorpion Verde 285/40 R21 109Y
Pirelli PZero 285/40 R21 109YPirelli Scorpion Verde 285/40 R21 109Y
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Seasonsummersummer
Product Typepassenger car / SUVpassenger car / SUV
Width285 mm285 mm
Aspect ratio40 %40 %
Tyre inner diameter21 "21 "
Load index109109
Speed ratingYY
Orientationnon-directionalnon-directional
Pattern Symmetryasymmetricasymmetric
Fuel efficiencyBC
Wet GripAB
Noise Level71 dB71 dB
Wear resistance (Treadwear)220400
Added to E-Catalogmarch 2018april 2016

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.

Wear resistance (Treadwear)

Tyre wear resistance rate according to the Treadwear standard issued by the US National Highway Traffic Safety Administration.

This rate indicates how far the tyre is able to travel until the tread reaches a critical level of wear. Treadwear is indicated in conditional points; formally, every 100 points correspond to 48,000 km (30,000 miles). However, it should be noted that testing according to this standard is carried out under perfect conditions — on flat roads, without numerous sharp accelerations and brakings, at a stable temperature, etc. Therefore, real wear resistance, usually, is lower by at least 20 – 30 %; and for a full guarantee, the claimed indicator is generally recommended to be divided by two. For example, formally the value of Treadwear 240 corresponds to a mileage of 48 × 2.4=115.2K km — however, in fact it is hardly worth counting on more than 90K km, and it is best to keep on the value of 55 – 58K km.

Generally, Treadwear ratings up to 250 are considered fairly low, 251 – 300 are considered average, 301 – 350 are above average, and over 350 is typical for the most durable tyre models. Note that this characteristic is given mainly for summer, less often — all-weather tyres; winter tyres should be quite soft, which makes it difficult to achieve more or less worthy wear resistance rating.