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Home  >  255 / 40 18  >  Goform  >  Goform 255 / 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  Goform   255/40  18     

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Show all the tyres in the selected size
Bridgestone Turanza T005 EXT
Bridgestone
Bridgestone
Turanza T005 EXT
255/40 R18 99Y XL MOE, run-flat

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 69dB
just  207.68 £
available
Details
Pirelli Cinturato P7 Run Flat
Pirelli
Pirelli
Cinturato P7 Run Flat
255/40 R18 95Y *, run-flat

Tyre type

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

(7)
Average based on 7 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 driven1837050
21.02.2016fromPhil
Best tyre yet...Had Michelin before and good but this is better. Not cheap but actually works out because they seem to last longer. Can't fault..No flaws
15.11.2011fromMircea Cora
runflat makes these tires extremely unconfortable, other than that excelent tire
(7)

Reifentest.com

just  207.77 £
limited stock
Details
Michelin Pilot Sport 5
Michelin
Michelin
Pilot Sport 5
255/40 R18 99Y XL *, EV Suitable

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance AWet 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.

(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 driven331534
16.08.2024fromJan Olsen
My size tire was not available on the site, it's 21" and not 18". My experience is maybe unique to Tesla cars, but it has only 1-2mm left after 17000 km. With Hankook and Pirelli, I've gotten better milage... The tire can suddenly lose grip in aqua planing conditions, which I did experience once on the highway - and not with any other tire. But maybe all tires would have this issue under the same conditions. My main issue is that the tire wears our very quickly especially on the rim area, making tires wear out prematurely and they easily puncture if not detected (can see white threads, but not visible easily if on the inner rim). Some of this is likely due to Tesla ABS system activating easily in sharp curves, as I have not experienced these issues with other car brands. Both model 3 and model S have this issue. These tires I need to replace quicker than 17000 km as one of tires has just approx 1mm thread.
07.06.2024fromMalcolm McKay
I chose the Pilot Sport 5s for my car for 6000 miles of arduous driving, leading a classic car rally around all of Greece. We were heavily laden and driving hard on very mixed surfaces. The Pilot Sports never let us down and showed impressive grip throughout. Even better, 10,000km later they have worn remarkably little, and very evenly. The sister car was on Toyos which admittedly are cheaper, but showed a LOT more wear.
22.08.2022fromJustin
Size = 255/40/19. I had the Pilot sport 4 on the front, went for the PS5 on the back as they were just available and they were great. I would definitely go for them again but I just changed my car and it looks like Michelin do not support the new size tyres (305/30/ZR21) but I will keep checking Michelin.
(3)

Reifentest.com

just  207.99 £
available
Details
Michelin Pilot Sport 4
Michelin
Michelin
Pilot Sport 4
255/40 R18 99Y XL *, EV Suitable

Tyre type

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

(22)
Average based on 22 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 driven3667908
18.04.2026fromJ Lynch
Smooth ride. Incredible grip that even prevents the traction control from engaging in brisk pull aways from a standstill. (My car is FWD). The only negative with the Michelin Pilot Sport 4 is that tyre wear does appear to be slightly higher than with a regular tyre.
15.02.2024fromDavid Wood
Flourless great in all conditions even got us home at 40 to 50 mph after running over something in the fast lane of the M5 northbound. Can’t praise enough.
09.02.2023fromJohn Molloy
These tyres are noticeable quieter than my previous tyres, Kumho Exta. Cornering grip is better and fuel consumption is slightly better
09.12.2021fromNicholas
I've driven roughly 22,000km as this was when i would of rebuilt the engine and got the car ready for road, by far these are the best tyres I've ever experienced on a car, I had used continentals and dunlop's beforehand, 2 competitors to Michelin, and before now, I always struggled with understeer under sharp cornering after periods of rain, with the PS4's, this has been completely eradicated, wet grip is by far the best in its class, with not much coming against it, usually the car would also break grip in wet conditions when in low gears speeding up, this has also vanished, in terms of lifespan, there is roughly 5mm left on the tyres after 22k km, so lifespan is also excellent. I am very confident in using these tyres and will be purchasing again once it comes time to replace.
(22)

Reifentest.com

just  210.31 £
limited stock
Details
Continental AllSeasonContact
Continental
Continental
AllSeasonContact
255/40 R18 99Y XL, EVc

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 73dB
Client reviews rating:
Client reviews rating

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

(33)
Average based on 33 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 driven6603710
18.08.2024fromGary Richardson
Better all around than the tyres supplied with the car
05.01.2024fromNick Ibrahim
I drive mostly in the city at low speeds however when taking to motorways in the UK I drive at 70MPH and in Europe at 75MPH. The drive is smooth and fuel economy is excellent, tyre wear is good and noise levels within the car is minimal.
08.06.2023fromNathan Gillick
Excellent safe and fun. You need to give warning when it won’t arrive for weeks before the customer pays though. I was stuck without something suitable. It’s not acceptable.
13.05.2023fromLyusien Byalkov
Perfect
(33)

Reifentest.com

just  212.78 £
limited stock
Details
Pirelli Cinturato P7 Run Flat
Pirelli
Pirelli
Cinturato P7 Run Flat
255/40 R18 95Y *, run-flat

Tyre type

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

(7)
Average based on 7 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 driven1837050
21.02.2016fromPhil
Best tyre yet...Had Michelin before and good but this is better. Not cheap but actually works out because they seem to last longer. Can't fault..No flaws
15.11.2011fromMircea Cora
runflat makes these tires extremely unconfortable, other than that excelent tire
(7)

Reifentest.com

just  212.95 £
available
Details
Continental PremiumContact 7
Continental
Continental
PremiumContact 7
255/40 R18 99Y XL, EVc

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 73dB
just  213.06 £
available
Details
Michelin Pilot Sport 4 ZP
Michelin
Michelin
Pilot Sport 4 ZP
255/40 R18 99Y XL *, EV Suitable, run-flat

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 71dB
just  214.26 £
limited stock
Details
Michelin X-Ice Snow
Michelin
Michelin
X-Ice Snow
255/40 R18 99H XL, EV Suitable Nordic Compound

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ENoise emissions 71dB
just  216.56 £
limited stock
Details
Atlas Sport Green 2
Atlas
Sport Green 2
255/40 R18 99W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 70dB
just  219.21 £
available
Details
Michelin Pilot Alpin 5
Michelin
Michelin
Pilot Alpin 5
255/40 R18 99H XL MO, EV Suitable

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip CNoise emissions 73dB
just  219.29 £
limited stock
Details
Pirelli Cinturato P7 (P7C2) Run Flat
Pirelli
Pirelli
Cinturato P7 (P7C2) Run Flat
255/40 R18 99Y XL *, run-flat

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 70dB
just  226.71 £
limited stock
Details
Pirelli Winter SottoZero 3 Run Flat
Pirelli
Pirelli
Winter SottoZero 3 Run Flat
255/40 R18 99V XL *, run-flat

Tyre type

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

(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 driven641736
02.02.2019fromPeter Robinson
This is an excellent tyre, first class grip in snow and ice and also works very well in the summer, although I believe this is not recommended.
(3)

Reifentest.com

just  229.58 £
available
Details
Yokohama Advan Neova (AD09)
Yokohama
Yokohama
Advan Neova (AD09)
255/40 R18 99W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip ANoise emissions 71dB
just  231.58 £
limited stock
Details
Continental ContiSportContact 5 SSR
Continental
Continental
ContiSportContact 5 SSR
255/40 R18 95Y *, run-flat

Tyre type

 Summer tyres
available
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  N/A
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven475470
(1)

Reifentest.com

just  242.66 £
available
Details
Yokohama Advan A052
Yokohama
Yokohama
Advan A052
255/40 R18 99Y XL

Tyre type

Supersport Road

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip ANoise emissions 73dB
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 driven21000
16.12.2025fromEdward Nunn
these are on my track/fun car and replaced the 20 year old tyres on it which came with the car, they completely changed the performance of the car, for the better, they grip exceptionally, especially when set to optimum pressure for the conditions, and hold traction under very heavy braking. They are as described a dry weather tyre with the ability to just about cope in the wet, and my experience is of dry track days with a very wet drive cross country the day before a track day which was ok, although i could feel a massive loss in traction crossing white lines on the motorway, and the morning before a track day driving through wet cool lanes which required a huge amount of care and attention not to end up in a hedge.
(1)

Reifentest.com

just  255.20 £
limited stock
Details
Continental WinterContact TS 860 S SSR
Continental
Continental
WinterContact TS 860 S SSR
255/40 R18 99V XL *, EVc, run-flat

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 73dB
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 driven276396
28.06.2025fromCharles Hillman
The tyres perform well. At that price I would expect no less. (But Michelins tend to cost even more than Continentals.) We don't get a lot of snow in Essex, England these days, but when we lived in parts of Germany where (at least then) it snowed in winter we always found Continental Winter Tyres performed well. And indeed I've left the winter tyres on for the summer this year. Partly through laziness. But also, low profile summer tyres look "cool" with alloy in the show rooms, but with all the pot holes and broken roads here in England, slightly thicker tyres on (slightly smaller) steel rims offer better resilience (and comfort). Economy penalty must existnotably inrespect of fuel, but appears very marginal as long as the tyres remain fully inflated. Which (so far) they do without frequent top-ups. Though I appreciate that reading what I just wrote makes me sounds very old. Ainsi soit il. And it still feels odd to be asked to review Winter Tyres in June.
09.11.2023fromMichael Yates
These are great winter tyres which I run all year round ( living in rural Wales). The problem is getting them in the size I need. I generally have to order at least 3 months before I am going to need them so this review is actually for the tyres I bought two years ago and which still have about 5000 miles (8000 km) wear left. The original summer tyres fitted to the car when I bought it new only lasted 25000 miles so these Continentals actually represent good value for money - and they don’t skid on muddy farm tracks in summer. I had a puncture and the runflat function worked well. But these tyres cannot be repaired by the usual method and there was no chance of getting a new pair of tyres in this size (have to replace in pairs on this car). My only option was the ‘slime’ injection which has worked perfectly. No loss of pressure over the last 5000 miles.
18.03.2022fromClaire Hunter
A much more balanced and user friendly tyre than the Pirelli winters they replaced which were supplied by BMW. Less tramlining. More precise grip and steering yet also more comfortable ride. Unable to accurately comment on fuel consumption as I haven’t monitored it that closely. Snow use not really tested this winter in the UK so can’t comment with any true experience.
(3)

Reifentest.com

just  258.10 £
available
Details
Bridgestone Blizzak LM-32 EXT
Bridgestone
Bridgestone
Blizzak LM-32 EXT
255/40 R18 99V XL MOE, run-flat

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip CNoise emissions 72dB
just  260.13 £
available
Details
Yokohama Advan A052
Yokohama
Yokohama
Advan A052
255/40 R18 99Y XL

Tyre type

Supersport Road

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip ANoise emissions 73dB
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 driven21000
16.12.2025fromEdward Nunn
these are on my track/fun car and replaced the 20 year old tyres on it which came with the car, they completely changed the performance of the car, for the better, they grip exceptionally, especially when set to optimum pressure for the conditions, and hold traction under very heavy braking. They are as described a dry weather tyre with the ability to just about cope in the wet, and my experience is of dry track days with a very wet drive cross country the day before a track day which was ok, although i could feel a massive loss in traction crossing white lines on the motorway, and the morning before a track day driving through wet cool lanes which required a huge amount of care and attention not to end up in a hedge.
(1)

Reifentest.com

just  292.05 £
available
Details
Continental VikingContact 8
Continental
Continental
VikingContact 8
255/40 R18 99T XL, EVc Nordic Compound

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip DNoise emissions 70dB
just  323.35 £
limited stock
Details
Nokian Hakkapeliitta R5
Nokian
Nokian
Hakkapeliitta R5
255/40 R18 99T XL Nordic Compound

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip DNoise emissions 71dB
just  326.90 £
limited stock
Details
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