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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  21   

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Prices include VAT and delivery within Ireland

Dunlop Sport Maxx RT2
Dunlop
Dunlop
Sport Maxx RT2
255/40 ZR21 102Y XL MO, with rim protection (MFS) BLK

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C 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.

(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 4403095
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*  427.50 £
just  233.29 £
limited stock
Details
Free shipping **
Dunlop Blue Response TG
Dunlop
Dunlop
Blue Response TG
255/40 R21 102V XL EVs, with rim protection (MFS) BLK

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip A Noise emissions 67 dB
List price*  382.00 £
just  247.69 £
In Stock
Details
Free shipping **
Show all the tyres in the selected size
Tracmax X Privilo RS01
Tracmax
X Privilo RS01
255/40 R21 102Y XL

Season

 Summer tyres
1 - 2 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 71 dB
just  105.04 £
limited stock
Details
Free shipping **
Accelera Iota ST-68
Accelera
Accelera
Iota ST-68
255/40 R21 102W XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 68 dB
just  108.84 £
limited stock
Details
Free shipping **
APlus Aerix RS01
APlus
Aerix RS01
255/40 ZR21 102Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 72 dB
just  112.23 £
In Stock
Details
Free shipping **
Minerva MV714
Minerva
Minerva
MV714
255/40 R21 102Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 72 dB
just  114.34 £
In Stock
Details
Free shipping **
RoadX SU01
RoadX
SU01
255/40 R21 102Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 71 dB
just  114.51 £
In Stock
Details
Free shipping **
Imperial Ecosport SUV
Imperial
Imperial
Ecosport SUV
255/40 R21 102Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 72 dB
just  117.83 £
In Stock
Details
Free shipping **
Triangle Sportex TH201
Triangle
Triangle
Sportex TH201
255/40 R21 102Y 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 C 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.

(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 driven 239225
03.05.2023 from Mr Shane Harris
I had always purchased branded tyres for my cars, particlulary cars that are quick/nippy. I was recommended these tyres by fellow users on Audi forums etc and I must say that these have been brilliant. Road noise is quite, grip is really good both wet and dry and they are wearing pretty well. For a fraction of the cost of premium tyres that were supplied i will defiantley be buying these again in the future.
21.03.2023 from Oskars
Bad handling on wet roads
(3)

Reifentest.com

just  122.25 £
limited stock
Details
Free shipping **
Leao Nova Force C/S
Leao
Leao
Nova Force C/S
255/40 R21 102W XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 73 dB
just  123.35 £
limited stock
Details
Free shipping **
RoadX RXQuest Sport SUV
RoadX
RXQuest Sport SUV
255/40 R21 102Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance B Wet grip A Noise emissions 71 dB
just  123.42 £
In Stock
Details
Free shipping **
Road Rider Strada SUV
Road Rider
Strada SUV
255/40 R21 102Y XL

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 71 dB
just  123.48 £
In Stock
Details
Free shipping **
AUSTONE Athena SP-303
AUSTONE
Athena SP-303
255/40 R21 102Y XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 73 dB
just  132.66 £
limited stock
Details
Free shipping **
General Grabber GT Plus
General
General
Grabber GT Plus
255/40 R21 102Y XL EVc, with kerbing rib

Season

 Summer tyres
2 - 4 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip A Noise emissions 73 dB
List price*  211.00 £
just  140.99 £
limited stock
Details
Free shipping **
RoadX SU01
RoadX
SU01
255/40 R21 102Y 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  141.57 £
limited stock
Details
Free shipping **
Linglong Grip Master C/S
Linglong
Linglong
Grip Master C/S
255/40 R21 102W XL with kerbing rib

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
just  142.43 £
limited stock
Details
Free shipping **
Minerva Frostrack UHP
Minerva
Minerva
Frostrack UHP
255/40 R21 102V XL

Season

 Winter tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip C 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.

(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 33000
(1)

Reifentest.com

just  143.18 £
In Stock
Details
Free shipping **
Tristar Snowpower UHP
Tristar
Tristar
Snowpower UHP
255/40 R21 102V XL

Season

 Winter tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip C 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 1167530
(4)

Reifentest.com

just  143.53 £
In Stock
Details
Free shipping **
Linglong Sport Master e
Linglong
Linglong
Sport Master e
255/40 R21 102V EV, with kerbing rib

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance A Wet grip B Noise emissions 70 dB
just  147.93 £
In Stock
Details
Free shipping **
Chengshan CSC-303
Chengshan
Chengshan
CSC-303
255/40 R21 102Y XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 73 dB
just  150.70 £
limited stock
Details
Free shipping **
Radar Dimax R8+
Radar
Radar
Dimax R8+
255/40 R21 102Y XL EVc

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 73 dB
just  151.17 £
In Stock
Details
Free shipping **
GT Radial TouringActive
GT Radial
GT Radial
TouringActive
255/40 R21 102Y XL EV Ready, with rim protection (MFS)

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 71 dB
just  154.51 £
In Stock
Details
Free shipping **
Gripmax SureGrip A/S
Gripmax
SureGrip A/S
255/40 R21 102W XL

Season

 All-season tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip C 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.

(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 driven 504906
19.11.2021 from Ian Burton-Palmer
These tyres work really well in the wet or the dry road conditions. I also think that they are quite quiet compared the previous set of tyres I had on this vehicle. All round these are a great choice.
02.06.2021 from John Williams
A decent budget priced winter tyre. Very impressed with the grip quality in snow
(3)

Reifentest.com

just  159.21 £
limited stock
Details
Free shipping **
Maxxis Victra Sport 6 SUV
Maxxis
Maxxis
Victra Sport 6 SUV
255/40 R21 102Y XL with rim protection ridge (FSL)

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip A Noise emissions 72 dB
just  163.36 £
In Stock
Details
Free shipping **
Crosswind Grip Peak Winter
Crosswind
Grip Peak Winter
255/40 R21 102V XL

Season

 Winter tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip A Noise emissions 73 dB
just  163.39 £
In Stock
Details
Free shipping **
Kumho Ecsta PS71 SUV
Kumho
Kumho
Ecsta PS71 SUV
255/40 ZR21 102Y XL with rim protection ridge (FSL)

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip A Noise emissions 73 dB
List price*  331.14 £
just  173.70 £
In Stock
Details
Free shipping **
Marshal MU12
Marshal
Marshal
MU12
255/40 R21 102Y XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance D Wet grip C Noise emissions 72 dB
just  176.38 £
limited stock
Details
Free shipping **
Kumho Ecsta PS71 SUV
Kumho
Kumho
Ecsta PS71 SUV
255/40 ZR21 102Y XL with rim protection ridge (FSL)

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip A Noise emissions 73 dB
List price*  331.14 £
just  178.25 £
In Stock
Details
Free shipping **
There are 28 of 108 tyres displayed
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** Prices include VAT and delivery within mainland UK (excl. Scottish Highlands).

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