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Home  >  All-season tyres  >  255 / 40 20  >  Sonix  >  Sonix 255 / 40 20
All season tyres - suitable for all weather conditions
All-season tyres are the perfect combination between summer and winter tyres. All-season tyres impress by their good driving qualities regardless the weather conditions and the road. The specially developed profile of all-season tyres ensures a comfortable drive throughout the whole year. All-season tyres were specifically designed for all weather conditions thus eliminating the need to change the tyres depending on the season. Discover the new alternative to summer and winter tyres: the all-season tyres. We have a wide offer from leading manufacturers at top prices! The all-season tyres designed for winter conditions need to have the "M + S" marking (or M & S, MS). Some models may also have the snowflake symbol. M + S tyres with snowflake symbol meet the higher quality standards.
 
Identify the size of your tyre
The exact dimensions of a tyre can be found on the sidewall printed mark. The graphic shows how to read properties and dimensions of the tyre:
 
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SPEED INDEX:
The speed index indicates the maximum speed intended for the tyre. Up to this value, the manufacturer guarantees optimum operation with the appropriate tyre pressure. The maximum speed allowed for this vehicle is given in the vehicle owner's manual; this information can be used to select the appropriate speed index for the tyre. The speed index is the last mark on the sidewall of the tyre.
 
Load Index
Permissible maximum axle load per tyre in kg. To be found in the registration certificate or vehicle registration document or read directly from the tyre (two-digit number). It is permitted to fit a tyre with a higher load index.
 
Driving safety despite puncture
Runflat tyres are puncture-resistant tyres with reinforced sidewalls. This creates the so-called run-flat property. In the event of damage, this allows the vehicle to continue driving up to a distance of approx. 100 km (and even beyond depending on the product) at a maximum speed of 80 km/h, even if the pressure has been completely lost. Run-flat tyres even prevent the tyre rubber from jumping off the rim in the event of a loss of air pressure. A flat tyre is therefore still a flat tyre, but it loses some of its drama. Note: All run-flat tyres are marked with the symbol "RSC" (Runflat System Component) and may only be fitted in vehicles with a functioning air pressure control system!
 
Tyres with increased load capacity
Reinforced tyres are designed for higher loads than normal tyres. They can be identified by the designation 'RF' (reinforced) or also 'XL' or 'Extra Load'. They are used on vans, minibuses, off-road vehicles, etc. However, their mounting alone does not automatically result in higher load capacity but also requires a correspondingly higher air pressure. Furthermore, the load capacity index specified in the vehicle documents continues to apply.
 
Tyres with extra high load capacity
The "C" in the term C tyres stands for "commercial". These tyres are specially designed for commercial vehicles. These can be, for example, lighter trucks, delivery vans, flatbed trucks or panel vans. In other words: vehicles that have to move higher loads at a comparatively lower speed. The multi-ply reinforced C tyres are therefore even more load-bearing than reinforced tyres.
 
Mobility-optimised tyres
A tyre with a sealing layer on the opposite side of the tyre tread. In the event of a puncture (e.g. by a nail), this layer blocks any loss of air, even if the foreign body causing the puncture is still in the tyre. It is not necessary to stop or change the tyres immediately at the roadside.
 
Mobility-optimised tyres
A tyre with a sealing layer on the opposite side of the tyre tread. In the event of a puncture (e.g. by a nail), this layer blocks any loss of air, even if the foreign body causing the puncture is still in the tyre. It is not necessary to stop or change the tyres immediately at the roadside.
 
Tyres optimised for electric vehicles.
Tyre developed for electric vehicles. These tyres can also be used without hesitation on vehicles with other drive systems.
 

Our offer for  Sonix   255/40  20    All-season tyres 

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Sonix Prime A/S
Sonix
Prime A/S
255/40 ZR20 101W XL

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  140.42 £
limited stock
Details
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Tracmax Trac Saver
Tracmax
Trac Saver
255/40 ZR20 101Y XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. <span><em>Tyretest.com</em></span> offers over 430 000 tests firsthand - from consumers for consumers.

(1)
Average based on 1 test results  N/A
Grip in dry conditions
Braking in dry conditions
Grip in wet conditions
Braking in wet conditions
Grip in snow
Driving comfort
Internal noise level
Tyre wear
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Kilometers driven930810
10.04.2025fromIvan
This is a worst tyre i ever drive! On the wet road is very dangerious!
(1)

Reifentest.com

just  100.70 £
available
Details
Zmax X-Spider A/S
Zmax
X-Spider A/S
255/40 ZR20 101W XL

Tyre type

 All-season tyres
available
just  115.00 £
available
Details
Berlin Tires All Season 2
Berlin Tires
All Season 2
255/40 ZR20 101Y XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  126.81 £
available
Details
Radar Dimax All Season
Radar
Radar
Dimax All Season
255/40 ZR20 101Y XL

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 73dB
just  127.31 £
limited stock
Details
Nexen N blue 4 Season 2
Nexen
Nexen
N blue 4 Season 2
255/40 ZR20 101W XL 4PR

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 73dB
just  150.03 £
available
Details
Davanti Alltoura
Davanti
Alltoura
255/40 ZR20 101Y XL

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 72dB
just  174.09 £
limited stock
Details
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Prices include VAT and delivery within mainland UK (excl. Scottish Highlands).

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