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Home  >  215 / 50 18  >  Sonix Tyres  >  Sonix 215 / 50 18
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    215/50  18     

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Nankang Cross Seasons AW-6 SUV
Nankang
Nankang
Cross Seasons AW-6 SUV
215/50 ZR18 92W

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B 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.

(3)
Average based on 3 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
Fuel consumption
Kilometers driven 712572
27.12.2024 from Ian
Tyres seem fine no problems so far. Have not had a chance to test on snow.
27.05.2022 from Yetibob
15 yrs driving instructor 42yrs driving experience 45 yrs motorcyclist
07.08.2020 from Joe
Excellent wet braking, good snow traction. Dry grip isn't bad but definitely not as good as a summer tyre with more meat in contact with the road. Relatively noisy tread pattern audible around town when the windows are down. Will vary from vehicle to vehicle. Had these on for six months and covered around 12500 miles / 20k Km. No issues.
(3)

Reifentest.com

just  107.49 £
available
Details
Nexen N blue 4 Season 2
Nexen
Nexen
N blue 4 Season 2
215/50 ZR18 92W 4PR

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 71 dB
just  110.05 £
available
Details
Sunny NC501
Sunny
Sunny
NC501
215/50 ZR18 92W XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip C Noise emissions 70 dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. Tyretest.com offers over 430 000 tests firsthand - from consumers for consumers.

(3)
Average based on 3 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
Fuel consumption
Kilometers driven 276816
15.05.2025 from Haaksema
Noisy tires. Every day i hear it around 80kmh. Like your car is defect. This all since i have this bad tires. I dont buy this again.
15.05.2025 from Martijn
Affordable tires. But the biggest problem is everytime the noise around the 80kmh. Like your wheelbearings are defect. I read more complains about this tire about the noise. China tires.... They promise a lot (extreme low noise in the specs... But in real you buy "crap".
(3)

Reifentest.com

just  110.39 £
available
Details
Sentury Qirin 990
Sentury
Qirin 990
215/50 ZR18 92W

Tyre type

 Summer tyres
available
just  113.95 £
available
Details
Roadstone Eurovis Sport 4
Roadstone
Roadstone
Eurovis Sport 4
215/50 ZR18 96W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip C Noise emissions 72 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
Grip in snow  N/A
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven 25000
(1)

Reifentest.com

just  118.76 £
available
Details
Starmaxx Dynamix Sport
Starmaxx
Starmaxx
Dynamix Sport
215/50 ZR18 92W

Tyre type

 Summer tyres
available
just  123.99 £
available
Details
Kumho Solus 4S HA32
Kumho
Kumho
Solus 4S HA32
215/50 ZR18 92W 4PR

Tyre type

 All-season tyres
available
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. Tyretest.com offers over 430 000 tests firsthand - from consumers for consumers.

(3)
Average based on 3 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
Fuel consumption
Kilometers driven 879376
15.07.2025 from Mr Hall
Kumho tyres always seem very good in all areas & at a fair price. We went for the All Season Solus as my partner is a care worker & out in literally all conditions.
14.04.2024 from David McCarthy
Second time I have bought these tyres. Just changed car and it has bigger wheels but will buy again if they come in right size
(3)

Reifentest.com

just  239.76 £
available
Details
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