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Home  >  225 / 40 18  >  GT Radial  >  GT Radial 225 / 40 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  GT Radial    225/40  18     

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Firestone Winterhawk 4
Firestone
Firestone
Winterhawk 4
225/40 R18 92V XL, EVc

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D 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.

(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 driven 870688
19.06.2025 from Stuart 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  92.06 £
available
Details
Momo M-4 FourSeason
Momo
M-4 FourSeason
225/40 R18 92Y XL

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip C Noise emissions 72 dB
just  92.06 £
limited stock
Details
Barum Polaris 5
Barum
Barum
Polaris 5
225/40 R18 92V XL, EVc

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip C Noise emissions 72 dB
just  92.24 £
limited stock
Details
Radar Dimax Winter
Radar
Radar
Dimax Winter
225/40 R18 92V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 72 dB
just  92.27 £
available
Details
BF Goodrich Advantage 2
BF Goodrich
BF Goodrich
Advantage 2
225/40 R18 92Y XL, EV Suitable

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance B Wet grip A Noise emissions 70 dB
just  92.33 £
available
Details
Kleber Quadraxer 3
Kleber
Kleber
Quadraxer 3
225/40 R18 92Y XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip B Noise emissions 69 dB
just  92.40 £
available
Details
Maxxis Premitra 5
Maxxis
Maxxis
Premitra 5
225/40 R18 92Y XL *

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance A Wet grip A Noise emissions 69 dB
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 driven 3524152
29.09.2019 from Lukasz Galanty
First time use Maxxis tyres, has worn on front wheels. Can’t believe that tyres from budget class, for me a lot better than previous Uniroyal Rainsport 3. Quality to price, definitely recommended, probably will use again.
01.02.2019 from Richard
These tyres are quiet and grip well in the dry. They also brake well in the wet too and have good aquaplaning resistance. Fuel economy is fine too. However, on a wet road when going around a roundabout at anything over 25mph they loose lateral grip and the car slides sideways. If you push on the power then they completely break off and the car understeers. I am used to it now and drive gently but could be a bit dangerous for those who aren't experienced drivers. Also on cold damp roads they lose traction at low speeds when turning full lock in a manouvere, sending the ESP system off. I am disappointed because of this and won't buy again or recommend.
26.01.2019 from Alan
The worst fault i have found with these tyres are cornering. Even at relatively slow speed the vehicle slides, giving up grip rather easy. They remind me of a set of Falcons a purchased a few year back. Not good. Apart from that, an all round decent cheap tyre. Previous tyre i had on Accord were Michelon. A hard act to follow but at £185 a corner !!!!
09.12.2018 from Cristian
Good quality.. did a few burnouts as well and they look just like new :)
(10)

Reifentest.com

just  92.41 £
available
Details
Tigar Winter
Tigar
Tigar
Winter
225/40 R18 92V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D 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
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven 27000
09.01.2021 from Milos
Best winter tyre! Best !
(1)

Reifentest.com

just  92.49 £
available
Details
Avon WX7 Winter
Avon
Avon
WX7 Winter
225/40 R18 92V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip B Noise emissions 71 dB
just  92.56 £
available
Details
Giti AllSeason AS1
Giti
AllSeason AS1
225/40 R18 92W XL

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip B Noise emissions 70 dB
just  92.64 £
limited stock
Details
BF Goodrich Advantage All-Season
BF Goodrich
BF Goodrich
Advantage All-Season
225/40 R18 92V XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip B Noise emissions 69 dB
just  92.75 £
available
Details
New
Continental AllSeasonContact 2
Continental
Continental
AllSeasonContact 2
225/40 R18 92Y XL, EVc

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.

(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 driven 1667250
08.08.2026 from V. Bhebhe
Good grip, solid performance on rough country roads, and smooth enough on A roads, balanced breaking and no vehicle shudder
05.02.2025 from Dean
I've done around 8500 miles so far in mostly poor weather , very good grip in all winter conditions and mild conditions. Good all rounder.
28.05.2024 from Marcis
Good grip on wet and dry roads. Reasonable grip on snow and icy roads. Noisy on dry roads. Fuel consumption has increased. All in all decent tyres.
07.04.2024 from Harry
Incredibly capable tyre for all conditions, but my experience on the roads in West Yorkshire will probably dictate that I don't purchase these tyres again as they are too soft on the sidewall, they do need some sort of protective band. The roads a terrible around Haworth for potholes, and in this case I could not dodge one and it has ripped the sidewall and damaged the rim, rendering the tyre scrap.
(10)

Reifentest.com

just  92.83 £
available
Details
Continental ContiSportContact 5
Continental
Continental
ContiSportContact 5
225/40 R18 92Y XL

Tyre type

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

(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 driven 6475465
07.01.2022 from John S.
Not a sport tyre. Very disappointment.
26.11.2020 from Alan Burton
Steady, now I'm over 70, with the occasional speed burst for fun. Usually stick to speed limits now.
26.04.2020 from Keith Stagner
Quiet & grips well. Gouges very easily on curbs when parking
27.08.2019 from MIKE
OE FITMENT NEVER HAD A PROBLEM AN EXCELLENT ALL ROUND PERFORMANCE TYRE.
(10)

Reifentest.com

just  92.85 £
available
Details
Tracmax X-Privilo S360
Tracmax
X-Privilo S360
225/40 R18 92H XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip C Noise emissions 72 dB
just  93.23 £
limited stock
Details
Bridgestone Potenza Sport Evo
Bridgestone
Bridgestone
Potenza Sport Evo
225/40 R18 92Y XL, Enliten / EV

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip A Noise emissions 72 dB
just  93.29 £
limited stock
Details
Sunfull SF-888
Sunfull
SF-888
225/40 R18 92W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip C Noise emissions 72 dB
just  93.50 £
limited stock
Details
Sunfull SF-889
Sunfull
SF-889
225/40 R18 92W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip C Noise emissions 72 dB
just  93.50 £
limited stock
Details
Goodyear Eagle F1 Supersport
Goodyear
Goodyear
Eagle F1 Supersport
225/40 R18 92Y XL (+), EVR

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B 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.

(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 driven 368094
10.01.2020 from BigSwede
The best road tyres I have used. Dry grip -awesome, wet grip - awesome feel/feedback - superb. They make the MPSS look silly, especially in adverse conditions. Can't recommend them highly enough!!
23.11.2019 from Neil McSwede
These are the best UHP rated tyre available IMO. I've used Michelin Pilot Super Sport and Pilot Sport 4 on my M140i and these Goodyear Eagle F1 Super Sport tyres have the beating of them. Fantastic front end grip, progressive rear at limit of adhesion. In the dry the are superb but in the wet they are pretty incredible. Very confidence inspiring meaning you can really push on where with other tyres of this type you'd be backing off. Can't recommend them highly enough!
(3)

Reifentest.com

just  93.59 £
limited stock
Details
Nokian Seasonproof 2
Nokian
Nokian
Seasonproof 2
225/40 R18 92Y XL Aramid Sidewalls

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip A Noise emissions 70 dB
just  93.69 £
available
Details
Bridgestone Turanza All season 6
Bridgestone
Bridgestone
Turanza All season 6
225/40 R18 92Y XL, Enliten / EV

Tyre type

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

(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 driven 415908
06.09.2025 from Zoran
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  93.77 £
available
Details
Sunfull SF-982
Sunfull
SF-982
225/40 R18 92H XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance E Wet grip D Noise emissions 72 dB
just  93.82 £
limited stock
Details
Kenda Wintergen 2 KR501
Kenda
Kenda
Wintergen 2 KR501
225/40 R18 92V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip B Noise emissions 69 dB
just  93.88 £
available
Details
Apollo Aspire 4G+
Apollo
Apollo
Aspire 4G+
225/40 R18 92Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip C Noise emissions 72 dB
just  93.99 £
available
Details
Linglong Sport Master Winter
Linglong
Linglong
Sport Master Winter
225/40 R18 92W XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip A Noise emissions 72 dB
just  94.14 £
available
Details
Greentrac Season Master
Greentrac
Season Master
225/40 R18 92W XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 71 dB
just  94.20 £
available
Details
Grenlander Enri U08
Grenlander
Enri U08
225/40 R18 92W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 70 dB
just  94.25 £
limited stock
Details
Bridgestone Potenza Sport
Bridgestone
Bridgestone
Potenza Sport
225/40 R18 92Y XL (+), EVc

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip A Noise emissions 68 dB
Client reviews rating:
Client reviews rating

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

(40)
Average based on 40 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 10160290
18.12.2025 from Keith
Unlike some who write stuff thinking they're lewis hamilton, im not, but im no miss daisy either. Ive driven it pretty hard at times and whatever has been thrown at these tyres, wet or dry, they have stood up to it. Not a hint of losing it. Exactly what you expect, from mid range premium make tyres.
30.08.2024 from Clive Smith
These are the B-Silent Model and they were 235/55 R19 105Y but this system will not let me specify 55 height. These tyres are absolutely brilliant! I fitted them on the rear and they stopped the road noise from the rear completely. I just wish I had not fitted something different to the front previously, as soon as the fronts wear out I will change to these. I have had no problem with grip, despite racing others around roundabouts.
28.10.2021 from Fluster
Excellent in the wet, no hydroplaning or wheeljerk when driving into puddles at speed. This is my second set of this tyre for this reason.
13.10.2021 from Agop Beyleryan
The tyre is with overall good performance. On wet is losing grip in the corners, however braking in wet conditions is solid
(40)

Reifentest.com

just  94.40 £
limited stock
Details
Sebring Snow
Sebring
Sebring
Snow
225/40 R18 92V XL

Tyre type

 Winter tyres
limited stock
just  94.45 £
limited stock
Details
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