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Home  >  235 / 55 18  >  Sonix  >  Sonix 235 / 55 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   235/55  18     

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Toyo Proxes Comfort
Toyo
Toyo
Proxes Comfort
235/55 R18 100V

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 71dB
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  N/A
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven138805
31.08.2023fromKalin
Bad grip, handling and braking on wet roads
(3)

Reifentest.com

just  127.49 £
available
Details
Sailun Ice Blazer Alpine Evo1
Sailun
Sailun
Ice Blazer Alpine Evo1
235/55 R18 104H XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 72dB
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
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven212499
16.10.2024fromJurijs
One of the best winter tyres I had from year 2007, when I started to drive my own car. Confident driving also with one side on ice, another on dry surface, on wet snow or just wet surface.
(1)

Reifentest.com

just  127.92 £
limited stock
Details
Hankook Kinergy 4S² X H750A
Hankook
Hankook
Kinergy 4S² X H750A
235/55 R18 104V XL 4PR SBL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  127.97 £
available
Details
Yokohama Geolandar (G91AV)
Yokohama
Yokohama
Geolandar (G91AV)
235/55 R18 100H

Tyre type

H/T Reifen

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip DNoise emissions 71dB
just  128.22 £
available
Details
Falken EUROALL SEASON AS220
Falken
Falken
EUROALL SEASON AS220
235/55 R18 104V XL, VCe BLK

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 70dB
just  128.25 £
available
Details
Hankook Ventus evo K137A
Hankook
Hankook
Ventus evo K137A
235/55 R18 100V 4PR (+), SUV SBL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance AWet grip ANoise emissions 68dB
just  128.43 £
available
Details
Laufenn S Fit EQ+ LK01
Laufenn
S Fit EQ+ LK01
235/55 R18 100V 4PR SBL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  128.50 £
available
Details
Westlake Z-507
Westlake
Westlake
Z-507
235/55 R18 104V XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  128.59 £
limited stock
Details
Kumho Crugen HP71
Kumho
Kumho
Crugen HP71
235/55 R18 104V XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 71dB
just  128.78 £
available
Details
Crosswind Grip Peak Winter
Crosswind
Grip Peak Winter
235/55 R18 104V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip ANoise emissions 72dB
just  129.17 £
available
Details
Dunlop Sport Response
Dunlop
Dunlop
Sport Response
235/55 R18 100V BLK

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 69dB
just  129.24 £
available
Details
Toyo Snowprox S 954
Toyo
Toyo
Snowprox S 954
235/55 R18 104H XL, SUV

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip CNoise emissions 72dB
Client reviews rating:
Client reviews rating

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

(9)
Average based on 9 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 driven1631658
15.06.2019fromTony Dolby
I have never triggered the ABS in 8 years of using this tyre, except when testing the surface, and have always felt confident even on wet ice! Great tyre, summer and winter.
(9)

Reifentest.com

just  129.26 £
limited stock
Details
Kleber Dynaxer HP 5 SUV
Kleber
Kleber
Dynaxer HP 5 SUV
235/55 R18 104V XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 70dB
just  129.30 £
available
Details
Kormoran Summer 3 SUV
Kormoran
Kormoran
Summer 3 SUV
235/55 R18 100V

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 71dB
just  129.43 £
limited stock
Details
Hankook Dynapro HPX (RA43)
Hankook
Hankook
Dynapro HPX (RA43)
235/55 R18 100V 4PR SBL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 71dB
just  129.77 £
available
Details
Maxxis Premitra Snow WP6 SUV
Maxxis
Maxxis
Premitra Snow WP6 SUV
235/55 R18 104V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 69dB
just  129.81 £
available
Details
Rockblade Rock 525
Rockblade
Rock 525
235/55 R18 104V XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 70dB
just  130.18 £
limited stock
Details
Bridgestone Turanza All season 6
Bridgestone
Bridgestone
Turanza All season 6
235/55 R18 104V XL, Enliten / EV

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 70dB
Client reviews rating:
Client reviews rating

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

(4)
Average based on 4 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 driven415908
06.09.2025fromZoran
I have front set of 2 tires 1 year and around 20000km old, and rear set 6 months and around 10000km. Tyres are excellent for my car on dry and wet. There's not much snow in this part of England, but was some WET snow last winter and tyres were good on start and in curves but on braking just slide (wet snow i suppose). I have been on the road trip this summer 5000km+, and tyres aren't worn at all. Good grip in curves on motorway at high speed (up to 180 km/h) on dry and wet.
(4)

Reifentest.com

just  130.28 £
available
Details
Pirelli P Zero PZ4 LS
Pirelli
Pirelli
P Zero PZ4 LS
235/55 R18 100V VOL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 70dB
just  130.41 £
limited stock
Details
Yokohama Geolandar A/T (G015)
Yokohama
Yokohama
Geolandar A/T (G015)
235/55 R18 104H XL

Tyre type

A/T Reifen

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance EWet grip CNoise emissions 72dB
just  130.59 £
available
Details
Kleber Quadraxer SUV
Kleber
Kleber
Quadraxer SUV
235/55 R18 100V

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 69dB
just  130.84 £
available
Details
Leao NOVA-FORCE 4×4 HP
Leao
Leao
NOVA-FORCE 4×4 HP
235/55 R18 104V XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  130.93 £
limited stock
Details
Mirage MR-HP172
Mirage
MR-HP172
235/55 R18 104V XL

Tyre type

 Summer tyres
limited stock
just  131.59 £
limited stock
Details
Optimo Winter GT OW31A
Optimo
Winter GT OW31A
235/55 R18 104H XL 4PR SBL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  131.84 £
available
Details
Hankook Ventus Prime 4 K135A
Hankook
Hankook
Ventus Prime 4 K135A
235/55 R18 104V 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 driven1149377
15.08.2025fromDonald
These tyres are good value and perform safely and well when used within legal parameters on UK roads. One slight negative is road surfaces can sometimes make tyre noise quite high but other than that I will definitely buy them again.
12.09.2024fromMichael
The tyres were 7/10 when I got them, the wet straight line grip is great the dry performance is above average. Quiet and comfortable tyres. The tyre wear is poor, I had new arms,tie rods, drop links and bushings as well as alignment done afterwards. The tyres showed excessive wear on the edge after only 8000 miles. I always check tyre pressure every week.
(2)

Reifentest.com

just  132.49 £
available
Details
Kleber Quadraxer SUV
Kleber
Kleber
Quadraxer SUV
235/55 R18 104V XL

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 69dB
just  133.41 £
limited stock
Details
Westlake SW618
Westlake
Westlake
SW618
235/55 R18 104T XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip ENoise emissions 72dB
just  133.61 £
available
Details
GT Radial WinterPro2 Sport
GT Radial
GT Radial
WinterPro2 Sport
235/55 R18 104H XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  133.75 £
available
Details
There are 28 of 362 tyres displayed
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