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  4. Sunwide 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:
 
/
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  Sunwide  255/40  18   

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Hankook Winter i*cept evo 4 W340
Hankook
Hankook
Winter i*cept evo 4 W340
255/40 R18 99V XL 4PR, with rim protection (MFS) SBL

Season

 Winter tyres
2 - 4 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 73 dB
List price*  243.50 £
just  140.62 £
In Stock
Details
Free shipping **
Maxxis Victra Sport 5
Maxxis
Maxxis
Victra Sport 5
255/40 ZR18 99Y XL with rim protection ridge (FSL)

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip A Noise emissions 71 dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. <span><em>Tyretest.com</em></span> 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 driven 270504
(1)

Reifentest.com

just  141.03 £
In Stock
Details
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Firestone Firehawk Sport
Firestone
Firestone
Firehawk Sport
255/40 R18 99Y XL EVc, with rim protection (MFS)

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance B Wet grip A Noise emissions 70 dB
List price*  214.00 £
just  141.80 £
In Stock
Details
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Vredestein Ultrac Vorti+
Vredestein
Vredestein
Ultrac Vorti+
255/40 ZR18 (99Y) XL with rim protection ridge (FSL)

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip B Noise emissions 71 dB
just  141.88 £
In Stock
Details
Free shipping **
Semperit Speed-Life 3
Semperit
Semperit
Speed-Life 3
255/40 R18 99Y XL EVc, with kerbing rib

Season

 Summer tyres
2 - 4 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 73 dB
List price*  252.00 £
just  142.93 £
In Stock
Details
Free shipping **
Dunlop Sport Maxx RT2
Dunlop
Dunlop
Sport Maxx RT2
255/40 R18 99Y XL with rim protection (MFS) BLK

Season

 Summer tyres
2 - 4 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip A Noise emissions 73 dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. <span><em>Tyretest.com</em></span> offers over 430 000 tests firsthand - from consumers for consumers.

(12)
Average based on 12 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 4424172
07.08.2020 from brendan O sullivan
Good tyres but not as good as the Michelin pilot sport 4. Will be going back to the sports.
04.12.2019 from Ali
I am a High mileage driver covering all roads day and night. This is a premium summer tyre made for dry grip and wet braking. Out of a budget , midrange and premium I&rsquo;ve noted , the cheapest gives me around 6000 miles. The mid ranges cover around 12000 miles and premiums last around 18000 miles. In terms of grip it always has to be premium. These are also much quieter than budget tyres. I&rsquo;ve covered 25000 miles of hard driving with these tyres and they still have around 3mm left. This is the second summer I&rsquo;ve purchased these tyres. Good on price as well as grip
(12)

Reifentest.com

List price*  275.50 £
just  143.51 £
In Stock
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Hankook Ventus Prime 4 K135
Hankook
Hankook
Ventus Prime 4 K135
255/40 ZR18 99W XL 4PR with rim protection (MFS) SBL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance B Wet grip A Noise emissions 69 dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. <span><em>Tyretest.com</em></span> 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 driven 1106979
15.08.2025 from Donald
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.
12.09.2024 from Michael
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

List price*  236.50 £
just  144.14 £
In Stock
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Nokian Powerproof 2
Nokian
Nokian
Powerproof 2
255/40 R18 99Y XL Aramid Sidewalls, with rim protection (MFS)

Season

 Summer tyres
2 - 4 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip A Noise emissions 70 dB
List price*  253.00 £
just  145.21 £
In Stock
Details
Free shipping **
BF Goodrich Advantage 2
BF Goodrich
BF Goodrich
Advantage 2
255/40 R18 95Y EV Suitable, with rim protection ridge (FSL)

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance B Wet grip A Noise emissions 72 dB
just  146.12 £
limited stock
Details
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Kleber Dynaxer HP 5
Kleber
Kleber
Dynaxer HP 5
255/40 R18 95Y

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance B Wet grip A Noise emissions 72 dB
just  146.25 £
limited stock
Details
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Kumho Ecsta PS91
Kumho
Kumho
Ecsta PS91
255/40 ZR18 (99Y) XL with rim protection ridge (FSL)

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance D Wet grip A Noise emissions 72 dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. <span><em>Tyretest.com</em></span> 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 driven 287712
30.09.2023 from Phil Bradley
Awesome grip and nice steering feel. Surprisingly quiet, especially on our chipseal roads Way more comfortable than the Bridgestone Potenzas it came on.
(2)

Reifentest.com

List price*  229.32 £
just  146.30 £
limited stock
Details
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Yokohama Advan Sport (V105)
Yokohama
Yokohama
Advan Sport (V105)
255/40 R18 99Y XL MO, RPB

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip A Noise emissions 73 dB
List price*  283.00 £
just  150.26 £
In Stock
Details
Free shipping **
Toyo Proxes Sport 2
Toyo
Toyo
Proxes Sport 2
255/40 ZR18 (99Y) XL with rim protection ridge (FSL)

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip A Noise emissions 71 dB
just  151.17 £
limited stock
Details
Free shipping **
Arivo Ultra ARZ-4
Arivo
Ultra ARZ-4
255/40 ZR18 99W XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 71 dB
just  152.36 £
limited stock
Details
Free shipping **
Nokian Powerproof 1
Nokian
Nokian
Powerproof 1
255/40 ZR18 99Y XL with rim protection (MFS)

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip A Noise emissions 73 dB
List price*  241.00 £
just  154.09 £
limited stock
Details
Free shipping **
Maxxis Arctictrekker SP-02
Maxxis
Maxxis
Arctictrekker SP-02
255/40 R18 95T, Nordic Compound

Season

 Winter tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance B Wet grip D Noise emissions 72 dB
just  155.46 £
limited stock
Details
Free shipping **
Bridgestone Turanza All season 6
Bridgestone
Bridgestone
Turanza All season 6
255/40 R18 99Y XL Enliten / EV, with rim protection (MFS)

Season

 All-season tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance B Wet grip B Noise emissions 71 dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. <span><em>Tyretest.com</em></span> 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 470877
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&#39;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&#39;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

List price*  249.00 £
just  155.46 £
In Stock
Details
Free shipping **
Kleber Dynaxer HP 5
Kleber
Kleber
Dynaxer HP 5
255/40 R18 99Y XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance B Wet grip A Noise emissions 73 dB
just  155.88 £
limited stock
Details
Free shipping **
Arivo Ice Claw ARW7
Arivo
Ice Claw ARW7
255/40 R18 99T XL, studded

Season

 Winter tyres
2 - 5 working days delivery time
In Stock
just  156.99 £
In Stock
Details
Free shipping **
Bridgestone Blizzak 6
Bridgestone
Bridgestone
Blizzak 6
255/40 R18 99V XL Enliten / EV, with rim protection (MFS)

Season

 Winter tyres
2 - 4 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 72 dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. <span><em>Tyretest.com</em></span> 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 85998
(1)

Reifentest.com

List price*  272.00 £
just  157.99 £
In Stock
Details
Free shipping **
Firestone Roadhawk 2
Firestone
Firestone
Roadhawk 2
255/40 R18 99Y XL EVc, with rim protection (MFS)

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance B Wet grip A Noise emissions 72 dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. <span><em>Tyretest.com</em></span> 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 driven 280800
29.07.2025 from Tom
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 &quot;step-out&quot; 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  158.40 £
In Stock
Details
Free shipping **
Yokohama Advan Sport (V105+)
Yokohama
Yokohama
Advan Sport (V105+)
255/40 R18 95Y MO, RPB

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance D Wet grip A Noise emissions 72 dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. <span><em>Tyretest.com</em></span> 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 157689
12.06.2019 from Mr Kan
Got these tyres all round just after Xmas. Very good grip in the dry with the feedback and steering response being superb.
(3)

Reifentest.com

List price*  282.00 £
just  160.51 £
limited stock
Details
Free shipping **
Sailun Ice Blazer Arctic EVO
Sailun
Sailun
Ice Blazer Arctic EVO
255/40 R18 95T, runflat

Season

 Winter tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip D Noise emissions 71 dB
just  160.65 £
In Stock
Details
Free shipping **
Vredestein Wintrac Pro+
Vredestein
Vredestein
Wintrac Pro+
255/40 R18 99Y XL EVc, with rim protection ridge (FSL)

Season

 Winter tyres
1 - 2 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance D Wet grip C Noise emissions 71 dB
List price*  233.50 £
just  161.27 £
limited stock
Details
Free shipping **
Yokohama BluEarth-4S AW21
Yokohama
Yokohama
BluEarth-4S AW21
255/40 R18 99Y XL BluEarth, RPB

Season

 All-season tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip B Noise emissions 73 dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. <span><em>Tyretest.com</em></span> 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 2121612
15.04.2024 from Phil Gillender
Had little snow this year but felt very stable good in wet.No problem s so far
19.02.2021 from Rick von Horvath
Such an amazing tyre from Yokohama. Equally as good, if not better, than both Uniroyal and Yokohama winter tyres that I have used in the past. So much quieter too than winter tyres. Top rated traction on both snow and ice. I have passed taxi drivers and over enthusiastic prestige German car drivers trying to go up steep snow covered hills as the Yokohama BluEarth-4S AW21 just kept on going with confidence and tenacious grip. I would swear blind that my humble Skoda Octavia Combi was a 4 x 4 rather than FWD! I understand that this tyre is TUV Sud approved and I can totally as to understand why. Such good valve tyres so go and purchase some, you will not regret it!
23.01.2021 from Viorel
Surprisingly good grip on wet road and stability. Compares very well with my previous premium brand, season dedicated. Price considered, very happy, would buy again.
(4)

Reifentest.com

List price*  260.00 £
just  161.42 £
In Stock
Details
Free shipping **
Yokohama Advan Sport (V107)
Yokohama
Yokohama
Advan Sport (V107)
255/40 ZR18 (99Y) XL RPB

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip A Noise emissions 73 dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. <span><em>Tyretest.com</em></span> 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  N/A
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven 1003800
31.05.2025 from Mikeymustard
A good value tyre, fit and forget - unremarkable but not in a bad way. They&#39;re only vice is they&#39;re not terribly puncture resistant and one has had to be replaced rather than repaired
02.11.2024 from CF
On my second set of these tyres, excellent grip and handling. Good in the wet too
26.09.2024 from CB
I replaced the original MG4 Continental tyres with these Yokohamas after about 20,000 miles. These new tyres have so much better grip in all weathers. These new ones are however a little less comfortable on UK road surfaces (which causes more road noise) as the Continentals were really comfortable with little road noise.
06.10.2023 from Victor
On wet roads, the cornering capability is reduced compared to Bridgestones, however these tyres cost 30% less. All in all, for mixed driving, it&rsquo;s a great all rounder, especially since it&rsquo;s very reasonably priced. A decent everyday tyre. We&rsquo;ll see how long it lasts, but seems promising, so far. Noise level is quite low too.
(9)

Reifentest.com

List price*  290.00 £
just  164.00 £
In Stock
Details
Free shipping **
Hankook Ventus evo K137
Hankook
Hankook
Ventus evo K137
255/40 R18 99Y XL 4PR *, with rim protection (MFS) SBL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance A Wet grip A Noise emissions 69 dB
List price*  235.00 £
just  164.44 £
In Stock
Details
Free shipping **
Winrun R330 Run Flat
Winrun
R330 Run Flat
255/40 ZR18 95W runflat

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance D Wet grip C Noise emissions 71 dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. <span><em>Tyretest.com</em></span> 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 driven 30916
21.10.2022 from Tammo
These very big tyres are no good for my BMW X5 with r20. In wet conditions it is horrible (we get a lot of water in the rainy season), especially on Mexican roads. Makes my car feel very unstable , lots of aquaplaning since new . I have been driving these tyres for one and a half years and wanted to change them since the beginning. Worst tyres I have ever tried in more than 30 years of driving experience. After 27 thousand long distance km they are completely gone, no thread wear left at all. I am not a sporty driver! Changed tyres (Michelin) and now my X5 seems like another car. Should have listened to myself a long time ago. Will never try this brand again. Prefer to spend the money!!
(1)

Reifentest.com

just  165.03 £
limited stock
Details
Free shipping **
There are 28 of 212 tyres displayed
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