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Home  >  225 / 50 18  >  Sonix Tyres  >  Sonix 225 / 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   225/50  18     

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Linglong Sport Master Winter
Linglong
Linglong
Sport Master Winter
225/50 R18 99V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip ANoise emissions 72dB
just  118.45 £
available
Details
Toyo Proxes Comfort
Toyo
Toyo
Proxes Comfort
225/50 R18 95W

Tyre type

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

(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  119.18 £
available
Details
Falken EUROALL SEASON AS220
Falken
Falken
EUROALL SEASON AS220
225/50 R18 99V XL, VCe BLK

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 69dB
just  120.09 £
available
Details
Maxxis Premitra 6
Maxxis
Maxxis
Premitra 6
225/50 R18 99W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 72dB
just  121.69 £
limited stock
Details
Yokohama BluEarth-Winter (V906)
Yokohama
Yokohama
BluEarth-Winter (V906)
225/50 R18 99V XL BluEarth

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 71dB
just  121.80 £
available
Details
Radar Dimax All Season
Radar
Radar
Dimax All Season
225/50 R18 99W XL

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip ANoise emissions 72dB
just  122.29 £
limited stock
Details
Sunfull SF-500 ev
Sunfull
SF-500 ev
225/50 R18 99W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  122.52 £
limited stock
Details
GT Radial Champiro FE2
GT Radial
GT Radial
Champiro FE2
225/50 R18 99W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 69dB
just  122.76 £
limited stock
Details
Firestone Roadhawk 2
Firestone
Firestone
Roadhawk 2
225/50 R18 99W XL, Enliten / EV

Tyre type

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

(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 driven250294
29.07.2025fromTom
These tyres in my rear wheel drive BMW are grippy in the dry, but leave me yearning for more in the wet. The car will "step-out" if I punch it whilst the road is even midly damp. My tracking was done at the same time as having these fitted so that is not a factor. The car will also step out if the road is more greasy looking.
(1)

Reifentest.com

just  122.87 £
limited stock
Details
HI FLY Vigorous WP801
HI FLY
Vigorous WP801
225/50 R18 95H

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip CNoise emissions 72dB
just  124.68 £
limited stock
Details
Maxxis Premitra All Season AP3
Maxxis
Maxxis
Premitra All Season AP3
225/50 R18 99V XL

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet 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 driven769860
04.04.2021fromMarco L.
Piacevolmente impressionato, gomme silenziose, consumi bassi e ottimo grip. Per una guida 80% extraurbana e 20% cittadina con andatura tranquilla sono veramente ottime. Magari le crossclimate della Michelin saranno più performanti, ma a questo prezzo è difficile trovare di meglio.
27.10.2019fromCraig McQueen
Sticks well to the road on corners in all conditions at all speeds. Gives confidence. Tyre is 225/40 R18. Not size available in drop down menu here. Built in kerb protection is welcome on such low profile tyres. Good value tyres, have used this brand for years over about 500,000miles with no issues, lasting 30000 miles plus on drive axles and had 66000miles on trailing rear axle pair!
(4)

Reifentest.com

just  125.48 £
limited stock
Details
Uniroyal AllSeasonExpert 3
Uniroyal
Uniroyal
AllSeasonExpert 3
225/50 R18 99W XL, EVc

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  126.05 £
available
Details
Viking WinTech NewGen
Viking
Viking
WinTech NewGen
225/50 R18 99V XL, EVc

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  126.40 £
available
Details
Semperit All Season-Grip 2
Semperit
Semperit
All Season-Grip 2
225/50 R18 99W XL, EVc

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  126.55 £
limited stock
Details
Giti Synergy H2
Giti
Synergy H2
225/50 R18 99W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 71dB
just  126.57 £
limited stock
Details
Falken EUROALL SEASON AS210
Falken
Falken
EUROALL SEASON AS210
225/50 R18 99V XL BLK

Tyre type

 All-season 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.

(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 driven1701621
07.08.2019fromlornel
a very comfortable drive whatever weather and very good when braking and cornering hold the road very well at high speed when driving on the motorway ( highway )
(2)

Reifentest.com

just  126.75 £
limited stock
Details
Crosswind Sport Peak C/S
Crosswind
Sport Peak C/S
225/50 R18 99W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 72dB
just  127.35 £
available
Details
Barum Polaris 6
Barum
Barum
Polaris 6
225/50 R18 99V XL, EVc

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  129.15 £
limited stock
Details
Goodyear Eagle F1 Asymmetric 6
Goodyear
Goodyear
Eagle F1 Asymmetric 6
225/50 R18 95V R0, EDR

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.

(57)
Average based on 57 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 driven8343440
07.10.2023fromSimon Hall
Amazing tyres, grip is excellent, comfort and noise are excellent. the only thing i can fault is that the wear isn't anything special. Down to 4mm after 6000 miles. My tyre size is 245/35R18 but tyretest will not let me add the correct size above.
10.08.2023fromDanB
Excellent tyres chosen via the reviews by Jon @ tyrereviews.co.uk - they faired very well against the likes of the Michelin PS5s and at the time of buying (Feb2023) the Goodyears were £250 cheaper than the PS5s; but more or less neck & neck with them in the tyre review! That swung the decision for me, more so with the money saving!
23.09.2022fromJames g
Fuel consumption high
07.02.2022fromSpiros
Car Driven : BMW 425D 225Hp . Quite quietly from the start until the first 10,000 km they kept a relatively low noise level until the end of their lives. Relatively comfortable especially considering that is a runflat tire. The tire tread still retains its original groove and design but has significant wear points on both edge and there are some small tire detachments. In the few rains we have in Greece it never had a hadling problem or breaking and did not create any feeling of insecurity. in short it is a good quiet tire ROF tire, comfortable and efficient in fast driving.
(57)

Reifentest.com

just  130.59 £
limited stock
Details
Semperit Speed-Grip 5
Semperit
Semperit
Speed-Grip 5
225/50 R18 99V XL, EVc

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  130.66 £
limited stock
Details
Kleber Dynaxer HP 5
Kleber
Kleber
Dynaxer HP 5
225/50 R18 95V

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 71dB
just  130.68 £
available
Details
Firestone Winterhawk 4
Firestone
Firestone
Winterhawk 4
225/50 R18 99V XL, EVc

Tyre type

 Winter 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.

(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 driven870688
19.06.2025fromStuart Johnson
These are an excellent alternative to the Michelin Alpin A3 which I have historically run. They were cracking before wearing out. I needed something that would stick the power of the vehicle and be controllable. These fit the bill admirably.
(1)

Reifentest.com

just  131.21 £
available
Details
Kumho Solus 4S HA32
Kumho
Kumho
Solus 4S HA32
225/50 R18 95V 4PR

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise 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.

(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 driven879376
15.07.2025fromMr 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.
14.04.2024fromDavid 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  131.80 £
limited stock
Details
Goodyear Eagle F1 Asymmetric 5
Goodyear
Goodyear
Eagle F1 Asymmetric 5
225/50 R18 95W , EVR

Tyre type

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

(54)
Average based on 54 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 driven6819201
23.09.2022fromJames g
Fuel consumption high
07.02.2022fromSpiros
Car Driven : BMW 425D 225Hp . Quite quietly from the start until the first 10,000 km they kept a relatively low noise level until the end of their lives. Relatively comfortable especially considering that is a runflat tire. The tire tread still retains its original groove and design but has significant wear points on both edge and there are some small tire detachments. In the few rains we have in Greece it never had a hadling problem or breaking and did not create any feeling of insecurity. in short it is a good quiet tire ROF tire, comfortable and efficient in fast driving.
31.12.2021fromStuart
Big improvement on the OEM fitted brand. More refined, quieter and more confident grip in both wet and dry. Fitted full set; 215/45R17 in front and 245/40R17 in rear, as standard spec. Only driven on road (A and B roads and some motorway), no tracking. Hard to fault for this purpose.
16.07.2021fromRok Sharma
I drive fast and furious when required or slow and deliberate in slow traffic! I used these tyres on my 5 series BMW 525iSE and were superb! Now on Mrs Peugeot 308 hdi and pretty good!
(54)

Reifentest.com

just  131.99 £
limited stock
Details
Vredestein Quatrac Pro+
Vredestein
Vredestein
Quatrac Pro+
225/50 R18 99W XL, EVc

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  133.50 £
limited stock
Details
Nexen N Fera RU1
Nexen
Nexen
N Fera RU1
225/50 R18 95V 4PR

Tyre type

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

(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 driven1157856
10.07.2019fromPeter Bergelin
I drive more heavy footed than my wife and I have purchased tyres for £200 + each in the past and they lasted 8 to 10 months. These tyres last around 14months minimum in the front and there are a lot of round about to travel around. They give excellent grip in all weathers.
26.08.2018fromMike
Bought these to replace the OEM Goodyear wranglers as they were avalaible, price and reviews were good, and the Goodyear’s wear wasn’t up to scratch in my opinion. They didn’t transform the handling of the car, but it’s a 7 seat giant of a SUV and so not too sporty in the corners anyway. The grip in both dry and wet wasn’t significantly worse than the Goodyear’s, and probably a little better in all but dry conditions. Had a few days use on snow / ice on treated and untreated roads, and combined with the electric wizardry of the Discovery, seemed to cope a lot better than the 1.8mm Goodyear’s i’d Just taken off. Whether the reed depth made more of an impact than brand i’m Not entirely sure. Seem to be lasting well after 12,000m I certainly would buy them again.
06.09.2015fromMr Paul Hamilton
I was a little worried about purchasing tyres from the internet at first, however mytyre were very professional and delivery was prompt, however I recommend you check your tyres carefully on delivery as one of my tyres was the wrong size, however it was rectified promptly. Although I paid for fitting which usually costs around £10 to £15 a tyre I still saved £180. The tyres were deliverd packaged and looked great, the EU standard efficiency marking was very helpful in choosing the tyres, I had great tyres and great service from Mytyre.
(4)

Reifentest.com

just  133.59 £
limited stock
Details
Semperit Speed-Life 3
Semperit
Semperit
Speed-Life 3
225/50 R18 99W XL, EVc

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  133.89 £
available
Details
Nexen Winguard Sport 3
Nexen
Nexen
Winguard Sport 3
225/50 R18 95V 4PR, EVc

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  134.68 £
available
Details
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