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Home  >  235 / 50 18  >  Sonix Tyres  >  Sonix 235 / 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    235/50  18     

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Windforce Terramaster A/S
Windforce
Terramaster A/S
235/50 R18 101W XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 72 dB
just  108.63 £
available
Details
RoadX Frost Tempo
RoadX
Frost Tempo
235/50 R18 101V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 72 dB
just  108.95 £
available
Details
Fronway Icemaster I
Fronway
Icemaster I
235/50 R18 97V

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip D Noise emissions 70 dB
just  109.03 £
available
Details
Victory Road Pro
Victory
Road Pro
235/50 R18 101Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance B Wet grip B Noise emissions 72 dB
just  109.33 £
available
Details
Apollo Alnac 4G All Season
Apollo
Apollo
Alnac 4G All Season
235/50 R18 101V XL, with rim protectionleiste (FSL)

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance B Wet grip C Noise emissions 72 dB
just  109.44 £
available
Details
Barum Bravuris 6
Barum
Barum
Bravuris 6
235/50 R18 97V EVc, with kerbing rib

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance B Wet grip B Noise emissions 71 dB
just  109.78 £
limited stock
Details
Imperial AS UHP Driver 2
Imperial
Imperial
AS UHP Driver 2
235/50 R18 101W XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance B Wet grip C Noise emissions 70 dB
just  113.88 £
available
Details
Uniroyal RainSport 5
Uniroyal
Uniroyal
RainSport 5
235/50 R18 97V EVc, with kerbing rib

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip A 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.

(23)
Average based on 23 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 4083696
10.12.2025 from Stephen Brown
Great tyres, safe and give confidence on all surfaces and conditions
13.06.2025 from stevi
best tyres ever had them on Audi A3 TDI sport ,fiesta st .ford focus MK2,jaguar xj 3Ltdi best grip ever handles in wet like a great tyre does when dry grips so hard in the dry the engine struggles to go faster because of the grip tried all the named brands like Mitchellen ,toyos ,co rentals and the uni royals beat them ever time not just price but grip safety and handling too .never use any other tyre the 5s are better than the 3s but not by much . hard to improve on such a great tyre
02.11.2024 from A Pritchard
Great.
13.04.2024 from Geof Wassell
Driving within my own ability and the ability of the vehicle I choose to drive is what I do. The tyres on my car are part of the interface between driver and road. I prefer to drive with the tyres fully inflated in order to feel the feedback from the surface of the road through noise, suspension and steering, I ballance throttle and brake response with weather conditions, road conditions and temperature. Tyres with less grip just dictate that I should moderate speed and braking at an increased rate. Noisey tyres provide slightly better feedback than silent tyres. The road with current traffic congestion burden isnt the place for performance spirited driving but is the place where defensive driving must be used. I would describe my tyres as competent.
(23)

Reifentest.com

just  110.21 £
available
Details
Superia EcoBlue UHP 2
Superia
EcoBlue UHP 2
235/50 R18 101Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip C Noise emissions 68 dB
just  110.60 £
limited stock
Details
Superia EcoBlue UHP 2
Superia
EcoBlue UHP 2
235/50 R18 101Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 68 dB
just  110.65 £
available
Details
Compasal Winterblazer UHP
Compasal
Winterblazer UHP
235/50 R18 101V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 72 dB
just  110.78 £
available
Details
Linglong Sport Master C/S
Linglong
Linglong
Sport Master C/S
235/50 R18 97V

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip A Noise emissions 68 dB
just  111.38 £
limited stock
Details
Linglong Sport Master Winter
Linglong
Linglong
Sport Master Winter
235/50 R18 101V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip A Noise emissions 72 dB
just  111.39 £
available
Details
Maxxis Premitra 6
Maxxis
Maxxis
Premitra 6
235/50 R18 97V

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip A Noise emissions 71 dB
just  111.84 £
available
Details
Landsail 4-Seasons 3
Landsail
Landsail
4-Seasons 3
235/50 R18 101V XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 72 dB
just  112.04 £
available
Details
Yokohama BluEarth-Winter V905
Yokohama
Yokohama
BluEarth-Winter V905
235/50 R18 101V XL BluEarth

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip C Noise emissions 72 dB
just  112.14 £
available
Details
New
Cooper Summer
Cooper
Cooper
Summer
235/50 R18 97V EVR, with Rim flange protection

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 71 dB
just  112.50 £
limited stock
Details
Superia EcoBlue 2 4S
Superia
EcoBlue 2 4S
235/50 R18 101W XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip B Noise emissions 70 dB
just  112.21 £
available
Details
Windforce Snowmaster
Windforce
Snowmaster
235/50 R18 101V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip B Noise emissions 72 dB
just  112.24 £
available
Details
RoadX RXMotion DU71
RoadX
RXMotion DU71
235/50 R18 101Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip A Noise emissions 71 dB
just  112.33 £
available
Details
Fortuna Eco Plus 2 4S
Fortuna
Fortuna
Eco Plus 2 4S
235/50 R18 101W XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip B Noise emissions 70 dB
just  112.44 £
available
Details
Onyx NY-AS 705
Onyx
NY-AS 705
235/50 R18 101V XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance E Wet grip C Noise emissions 72 dB
just  112.55 £
available
Details
Accelera X-Grip N
Accelera
Accelera
X-Grip N
235/50 R18 101V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip C Noise emissions 70 dB
just  112.73 £
available
Details
Grenlander L-Zeal 56
Grenlander
L-Zeal 56
235/50 R18 97V

Tyre type

 Summer tyres
limited stock
just  112.73 £
limited stock
Details
Tristar Snowpower2
Tristar
Tristar
Snowpower2
235/50 R18 101V XL, with rim protection (MFS)

Tyre type

 Winter 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.

(8)
Average based on 8 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 2371395
(8)

Reifentest.com

just  112.67 £
available
Details
Zeetex HP2000 vfm
Zeetex
Zeetex
HP2000 vfm
235/50 R18 101W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip A Noise emissions 70 dB
just  112.85 £
available
Details
Trazano Z507
Trazano
Trazano
Z507
235/50 R18 101V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip C Noise emissions 72 dB
just  113.52 £
available
Details
Firemax FM601
Firemax
FM601
235/50 R18 101W XL

Tyre type

 Summer 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.

(2)
Average based on 2 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 504800
(2)

Reifentest.com

just  113.28 £
available
Details
There are 28 of 373 tyres displayed
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