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Home  >  255 / 40 20  >  Dunlop  >  Dunlop 255 / 40 20
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.
 
x
Original equipment quality: optimum adjustment to the vehicle
Tyres with a special OEM marking on the sidewall, e.g. "MO" for Mercedes-Benz, were developed in cooperation with a specific car manufacturer and the tyre industry. These tyres have been homologated by the vehicle manufacturer and are a perfect match for a specific model. They have been specially designed to highlight or further improve the performance characteristics of the car in question, thus representing the culmination of a state-of-the-art fine-tuning process that perfectly complements the latest technological developments in the automotive industry. Tyres with manufacturer's markings can of course also be used on other vehicles.
 

Our offer for  Dunlop   255/40  20     

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Dunlop Sport Maxx RT2
Dunlop
Dunlop
Sport Maxx RT2
255/40 R20 101Y XL BLK

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.

(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 driven4403095
07.08.2020frombrendan O sullivan
Good tyres but not as good as the Michelin pilot sport 4. Will be going back to the sports.
04.12.2019fromAli
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’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’ve covered 25000 miles of hard driving with these tyres and they still have around 3mm left. This is the second summer I’ve purchased these tyres. Good on price as well as grip
(12)

Reifentest.com

just  193.56 £
limited stock
Details
Dunlop SP Sport Maxx
Dunlop
Dunlop
SP Sport Maxx
255/40 R20 101W XL MO BLK

Tyre type

Performance Summer

 Summer 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.

(45)
Average based on 45 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 driven21634470
12.08.2020fromVictor J Gatenby
The driving experience with these tyres is very good with good stability of the vehicle. I have not had any issues with driving on these tyres and find that the build of the tyre is substantial and suitable for my vehicle.
23.03.2011fromJosé Rebelo
POOR WET BRAKING, COMFORTABLE, VERY DURABLE, STABLE
23.06.2010fromchris
great tyre lasts a good 20k miles even driven quite hard
17.01.2010fromalli
great tyre for dry weather and wet-very poor on snow and only lasted 20000km, uneven wear
(45)

Reifentest.com

just  207.60 £
available
Details
Dunlop Sport Maxx RT2
Dunlop
Dunlop
Sport Maxx RT2
255/40 R20 101Y XL

Tyre type

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

(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 driven4403095
07.08.2020frombrendan O sullivan
Good tyres but not as good as the Michelin pilot sport 4. Will be going back to the sports.
04.12.2019fromAli
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’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’ve covered 25000 miles of hard driving with these tyres and they still have around 3mm left. This is the second summer I’ve purchased these tyres. Good on price as well as grip
(12)

Reifentest.com

just  240.16 £
available
Details
Show all the tyres in the selected size
TBB Tires Sportezza
TBB Tires
Sportezza
255/40 R20 101Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 72dB
just  64.94 £
available
Details
Accelera Phi
Accelera
Accelera
Phi
255/40 R20 101Y XL

Tyre type

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

(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
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven1538590
16.01.2019fromPrith
Probably the best in budget tyres
13.05.2014fromRobert
In the corners it slips
14.09.2013fromAdam
good price fast shipping
29.01.2012fromAl
Great tire at the price
(22)

Reifentest.com

just  77.28 £
available
Details
Rockblade Rock A/S 1
Rockblade
Rock A/S 1
255/40 R20 101W XL

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 70dB
just  85.20 £
limited stock
Details
Grenlander Greenwing A/S
Grenlander
Greenwing A/S
255/40 R20 101W XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  86.25 £
available
Details
Kustone Passion P9S
Kustone
Passion P9S
255/40 R20 101W

Tyre type

 Summer tyres
available
just  87.40 £
available
Details
Triangle Effexsport TH202
Triangle
Triangle
Effexsport TH202
255/40 R20 101Y

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet 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 driven241812
26.02.2025fromPhillip Claridge
The car was supplied to me with brand new Triangle tyres - a brand I had not heard of and was not one I would have gone for but in the year that I have had them on the car, I have no complaint about their performance. I cannot say whether they would be the tyre of choice when replacement is necessary. t
(1)

Reifentest.com

just  91.35 £
available
Details
Fronway Fronwing A/S
Fronway
Fronwing A/S
255/40 R20 101W XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  91.52 £
available
Details
Tracmax X-Privilo S330
Tracmax
X-Privilo S330
255/40 R20 101V XL

Tyre type

 Winter tyres
available
just  93.67 £
available
Details
Superia EcoBlue EV
Superia
EcoBlue EV
255/40 R20 101W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  94.87 £
available
Details
Superia EcoBlue 2 4S
Superia
EcoBlue 2 4S
255/40 R20 101W XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 70dB
just  94.87 £
available
Details
Fortuna Gowin UHP 3
Fortuna
Fortuna
Gowin UHP 3
255/40 R20 101V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 68dB
just  96.87 £
available
Details
Superia Bluewin UHP 3
Superia
Bluewin UHP 3
255/40 R20 101V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 68dB
just  96.87 £
available
Details
Fortuna Ecoplus EV
Fortuna
Fortuna
Ecoplus EV
255/40 R20 101W XL, EV

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  97.45 £
limited stock
Details
Fortuna Eco Plus 2 4S
Fortuna
Fortuna
Eco Plus 2 4S
255/40 R20 101W XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 70dB
just  97.84 £
available
Details
Landspider Sportraxx UHP
Landspider
Sportraxx UHP
255/40 R20 101Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 73dB
just  98.28 £
limited stock
Details
Ilink Snowgripper 1
Ilink
Snowgripper 1
255/40 R20 101V XL

Tyre type

 Winter tyres
available
just  98.87 £
available
Details
Triangle EffeX Winter TW421
Triangle
Triangle
EffeX Winter TW421
255/40 R20 101W

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 73dB
just  99.29 £
available
Details
Westlake ZuperAce Z-007
Westlake
Westlake
ZuperAce Z-007
255/40 R20 101Y XL

Tyre type

 Summer tyres
available
just  100.93 £
available
Details
Sailun Atrezzo 4Seasons Pro
Sailun
Sailun
Atrezzo 4Seasons Pro
255/40 R20 101W XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  101.56 £
available
Details
Imperial Ecosport 2
Imperial
Imperial
Ecosport 2
255/40 R20 101Y XL

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.

(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 driven201705
11.06.2021fromShaun Thorpe
Damn right dangerous... had these put on less than 6 months ago, and if you drive in a slightly spirited manner the lack of grip is phenomenal. 30mph bends leave you requiring replacement underwear. And it just gets worse in the wet. Braking distances are terrible in both wet and dry, but they are comfy for 45's. These are a drift tyre in my opinion, cheap and grip less. I only have 150bhp apread across all four wheels and they still slide, I wouldn't recommend them on anything with more than 100 ponies. And if its slightly moist or greasy out, you better be good at throttle control and counter steering... at low speeds they are perfectly acceptable, but if you like to put your foot down abit I'd spend some more money, we don't scrimp on safety.
(1)

Reifentest.com

just  102.62 £
available
Details
Atlas Green 3 4S
Atlas
Green 3 4S
255/40 R20 101W XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 70dB
just  103.07 £
available
Details
Minerva F205
Minerva
Minerva
F205
255/40 R20 101Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  106.37 £
available
Details
Imperial Snow Dragon UHP
Imperial
Imperial
Snow Dragon UHP
255/40 R20 101V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 73dB
just  108.11 £
available
Details
Leao Nova Force C/S
Leao
Leao
Nova Force C/S
255/40 R20 101W XL

Tyre type

 Summer tyres
available
just  108.81 £
available
Details
Linglong Grip Master C/S
Linglong
Linglong
Grip Master C/S
255/40 R20 101W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 73dB
just  109.65 £
available
Details
There are 28 of 204 tyres displayed
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Prices include VAT and delivery within mainland UK (excl. Scottish Highlands).

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