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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  Kontio    225/40  18     

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Nankang Sportnex AS-2+ RFT
Nankang
Nankang
Sportnex AS-2+ RFT
225/40 R18 92Y XL, run-flat

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip D Noise emissions 71 dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. Tyretest.com 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
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Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven 108896
09.02.2025 from Mislav Jogun
As tyres on rear axle they perform very good, never slipped, not noisy, no vibrations, not worn, perfect for the price, for now I am very happy with the purchase but I have not pushed any tyres to extreme, I am using them as normal driver would mixing countryside, highway and city.
(1)

Reifentest.com

just  271.22 £
limited stock
Details
Continental IceContact 3
Continental
Continental
IceContact 3
225/40 R18 92T XL studded

Tyre type

 Winter tyres
limited stock
just  280.25 £
limited stock
Details
Continental IceContact 8
Continental
Continental
IceContact 8
225/40 R18 92T XL, EVc studded

Tyre type

 Winter tyres
available
just  300.98 £
available
Details
Nokian Hakkapeliitta 01
Nokian
Nokian
Hakkapeliitta 01
225/40 R18 92T XL studded

Tyre type

 Winter tyres
available
just  328.15 £
available
Details
Nokian Hakkapeliitta 10
Nokian
Nokian
Hakkapeliitta 10
225/40 R18 92T XL studded

Tyre type

 Winter tyres
available
just  355.75 £
available
Details
Barum Polaris 5
Barum
Barum
Polaris 5
225/40 R18 92V XL, EVc

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip C Noise emissions 72 dB
just  402.92 £
limited stock
Details
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