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Home  >  235 / 55 18  >  Sonix Tyres  >  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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Dynamo Street-H MH01
Dynamo
Street-H MH01
235/55 R18 100V

Tyre type

 Summer tyres
limited stock
just  114.18 £
limited stock
Details
Nexen N Fera Sport SUV
Nexen
Nexen
N Fera Sport SUV
235/55 R18 100W 4PR

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise 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.

(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
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven858774
06.10.2022fromJohn
Handling it depends from road quality, but never excellent. Steering feeling is good. Breaking on dry roads insufficient, ABS function even in middle breaking situations. Very low noise,
(2)

Reifentest.com

just  114.48 £
available
Details
Petlas SuvMaster A/S
Petlas
Petlas
SuvMaster A/S
235/55 R18 104V XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip CNoise emissions 72dB
just  114.67 £
available
Details
Goodtrip BlueGuard AS
Goodtrip
BlueGuard AS
235/55 R18 104V XL

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 72dB
just  114.75 £
limited stock
Details
Fortune FSR-901
Fortune
FSR-901
235/55 R18 104V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip CNoise emissions 69dB
just  114.89 £
available
Details
Nankang Green/Sport Eco-2+
Nankang
Nankang
Green/Sport Eco-2+
235/55 R18 104V XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  115.00 £
limited stock
Details
Nexen N Fera Sport
Nexen
Nexen
N Fera Sport
235/55 R18 100V 4PR AO

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance AWet 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.

(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
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven504298
06.10.2022fromJohn
Handling it depends from road quality, but never excellent. Steering feeling is good. Breaking on dry roads insufficient, ABS function even in middle breaking situations. Very low noise,
(2)

Reifentest.com

just  115.76 £
limited stock
Details
Uniroyal AllSeasonExpert 2
Uniroyal
Uniroyal
AllSeasonExpert 2
235/55 R18 100V , EVc

Tyre type

 All-season tyres
available
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.

(10)
Average based on 10 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 driven3181926
20.02.2026fromMr Neil Richard Parnham
These are a thoroughly dependable tyre and the Expert 2 (and the later Expert 3) are superb tyres. In addition to the stated vehicle I have a set on my wife's 2014 Audi A3 and our 'spare car' a 2009 Fiat Panda 4x4. They are all on all year round and have acceptable wear even in hot summers
06.02.2026fromJim Hutchinson
What makes these tyres stand out is their performance on very wet roads or standing water.
27.02.2025fromMichael Payne
I am a careful driver. Mostly urban with some motorway driving. The tyres I chose are all season. Whilst I live in Edinburgh City, when snow falls I need to drive 800m and up 2 hills in order to get to a road that is kept clear and often there are cars and a bus strewn across the road. Amazing but true. These tyres have allowed me to bypass these cars and proceed to the swept roadway. 2 times this winter. Scarcely believable that people don't know how to drive in the snow. They are sure footed in frost too.
22.01.2025fromMr Neil Richard Parnham
We have owned this car for almost 11 years now and the last 9 years have been on firstly Uniroyal MS+77 205/55 R16 91H and then for the last 3 years on AllSeason Expert 2 which is a vastly improved tyre. The latter is so much quieter and returns improved fuel consumption and I believe better grip in wintry conditions
(10)

Reifentest.com

just  116.65 £
available
Details
Vittos VSH10
Vittos
VSH10
235/55 R18 104V XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  117.11 £
limited stock
Details
Nexen NPriz RH7
Nexen
Nexen
NPriz RH7
235/55 R18 100H 4PR

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise 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.

(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 driven23048
(1)

Reifentest.com

just  117.86 £
available
Details
GT Radial FE2 Evo
GT Radial
GT Radial
FE2 Evo
235/55 R18 104V XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 69dB
just  118.41 £
available
Details
Kormoran Summer 3
Kormoran
Kormoran
Summer 3
235/55 R18 100V

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 71dB
just  119.42 £
limited stock
Details
Taurus Summer 3
Taurus
Taurus
Summer 3
235/55 R18 100V

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 71dB
just  119.75 £
available
Details
Kleber Dynaxer HP 5
Kleber
Kleber
Dynaxer HP 5
235/55 R18 100V

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 70dB
just  120.24 £
available
Details
Vredestein Ultrac
Vredestein
Vredestein
Ultrac
235/55 R18 100V AO, EVc

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance AWet grip ANoise emissions 69dB
Client reviews rating:
Client reviews rating

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

(24)
Average based on 24 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 driven5130320
21.04.2011fromPedro Brito
Superb tyres and a good price.
14.10.2010fromSteve the audi driver
Had two sets of these on my previous car (Vw bora) and now on the A4. Always impressed for the price, drive as good as they look, replaced a set of ageing continental contact sport 3 that were terrible !
24.06.2009fromNeil Baldwin
Very very good tyre. Not quite as much outright grip as the new Goodyear Eagle F1 Asymmetric but longer life and quieter.
20.11.2008fromfrog
much better wet grip than my last set of p6000s. will buy again
(24)

Reifentest.com

just  120.44 £
limited stock
Details
Dynamo Street-H MH01
Dynamo
Street-H MH01
235/55 R18 100V

Tyre type

 Summer tyres
available
just  120.61 £
available
Details
Linglong Sport Master Winter
Linglong
Linglong
Sport Master Winter
235/55 R18 104V XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip ANoise emissions 72dB
just  120.83 £
limited stock
Details
Viking FourTech Plus
Viking
Viking
FourTech Plus
235/55 R18 104V XL, EVc

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  121.14 £
available
Details
Sunny NU025
Sunny
Sunny
NU025
235/55 R18 100V

Tyre type

 Summer tyres
available
just  121.27 £
available
Details
Bridgestone Turanza T005
Bridgestone
Bridgestone
Turanza T005
235/55 R18 100V , EVc

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance AWet grip BNoise emissions 71dB
just  121.79 £
available
Details
Triangle EffeX Winter TW421
Triangle
Triangle
EffeX Winter TW421
235/55 R18 104V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  121.90 £
available
Details
Semperit All Season-Grip
Semperit
Semperit
All Season-Grip
235/55 R18 104V XL, EVc

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  121.98 £
available
Details
Kleber Dynaxer HP 5
Kleber
Kleber
Dynaxer HP 5
235/55 R18 104V XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 70dB
just  122.23 £
available
Details
Dynamo Street-H MH01
Dynamo
Street-H MH01
235/55 R18 100V

Tyre type

 Summer tyres
available
just  122.31 £
available
Details
Viking ProTech NewGen
Viking
Viking
ProTech NewGen
235/55 R18 100V , EVc

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise 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.

(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 driven5118147
21.02.2026fromAlan Marshall
Fabulous tyres and exceptional wear, considering the price point of these, especially given my driving style. I'll definitely see over 20000 miles on these tyres which I find remarkable on a heavy car with over 400hp. Could I have better grip, sure for twice the price. Do you really need it, even for having fun on UK roads, no! They are soft rubber though, so you'll know if your alignment is out, these didn't last long on my Merc V Class!
08.08.2020fromDean
Doing relatively high mileage of over 40k every year, I've been through various different premium tyres over the years. Let me tell you, in the 5k miles on these tyres so far I'd say they're pound for pound up there with premium tyres for everyday driving. I've found them to be really good in the wet, no major drama with aquaplaning and my heavy right foot has encountered no issues in cornering. Strangely, I've found that I'm more confident with these in the wet than dry- they tend to be slightly unpredictable when pushing on. Not a massive issue by any means and shouldn't put anybody off, it's just highlighted by my spirited driving style! Wear seems to be decent so far, but as I said I've only done 5k so far so too early to tell. All in all, great value for money and worth a try. On 20's, The Goodyear Eagle F1s that I had on previously were £160 each, whereas I got these for £115. 200 quid saved, and genuinely no worse performance. Well done Viking!
18.10.2019fromW Edbury
The car feels very safe cornering and braking is very good , it drives straight no wandering overall I’m very satisfied with the set of Tyres.
(4)

Reifentest.com

just  122.58 £
available
Details
Continental PremiumContact 7
Continental
Continental
PremiumContact 7
235/55 R18 100V , EVc

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 71dB
just  122.59 £
available
Details
Nexen NPriz RH7
Nexen
Nexen
NPriz RH7
235/55 R18 100H 4PR

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise 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.

(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 driven23048
(1)

Reifentest.com

just  122.60 £
limited stock
Details
Royal Black Winter UHP
Royal Black
Winter UHP
235/55 R18 104V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  122.66 £
available
Details
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