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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  Michelin  255/40  21   

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Prices include VAT and delivery within Ireland

Michelin Pilot Sport 4S
Michelin
Michelin
Pilot Sport 4S
255/40 ZR21 (102Y) XL Acoustic, EV Suitable

Season

 Summer tyres
2 - 4 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance D 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.

(6)
Average based on 6 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 884622
24.11.2021 from Oliver Mwanza
The driving experience with Michellin tyres is superb. Will always use Michellin till further notice
13.03.2021 from Michael
B road driving with the odd motorway and A road. Excellent grip in all conditions, I bought these over pilot sports as I wanted to use them all year round. As long as the temp is above 6 degrees they are fine to push anything below that proceed with caution but they are certainly not ditch finders. I will be doing track on them aswell mainly due to changeable uk weather these are the perfect tyres to drive to track in with confidence.
17.01.2020 from Kram Kuntz
I find the tyres to have outstanding grip once the tyres are warm, comfort is far better than any other tyre i&#39;ve used, these are the 2 most important aspecs for me, as my driving style is quite enthusiastic, and being a fast rear wheel drive car, the last thing I need is the traction control light lighting up every 5 sec&#39;s, but when these tyres get warm I rarely see it. I&#39;m so impressed with them that I bought another set for my other wheels, they&#39;re the best tyre I&#39;ve ever fitted
(6)

Reifentest.com

List price*  433.50 £
just  253.54 £
limited stock
Details
Free shipping **
Michelin Pilot Sport 5 Energy
Michelin
Michelin
Pilot Sport 5 Energy
255/40 R21 102Y XL EV Suitable

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance A Wet grip A Noise emissions 73 dB
List price*  361.50 £
just  282.74 £
In Stock
Details
Free shipping **
Michelin Pilot Alpin 5
Michelin
Michelin
Pilot Alpin 5
255/40 R21 102V XL EV Suitable, MO1, with rim protection ridge (FSL)

Season

 Winter tyres
2 - 4 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 71 dB
List price*  364.50 £
just  283.50 £
limited stock
Details
Free shipping **
Michelin Primacy 5 Energy
Michelin
Michelin
Primacy 5 Energy
255/40 R21 102H XL EV Suitable, with rim protection ridge (FSL)

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance A Wet grip A Noise emissions 70 dB
List price*  347.50 £
just  285.29 £
In Stock
Details
Free shipping **
Michelin Pilot Sport EV
Michelin
Michelin
Pilot Sport EV
255/40 R21 102Y XL *, EV, i, 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 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.

(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
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven 73200
30.01.2025 from Joel
This tyre is unpredictable . Not a Pilot Sport standard. Skids in dry road. This tyre compares with budget tyre. Would not by again.
(2)

Reifentest.com

List price*  368.50 £
just  287.98 £
limited stock
Details
Free shipping **
Michelin Pilot Sport EV
Michelin
Michelin
Pilot Sport EV
255/40 R21 102Y XL Acoustic, EV, GOE, with rim protection ridge (FSL)

Season

 Summer tyres
1 - 2 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance B 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.

(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
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven 73200
30.01.2025 from Joel
This tyre is unpredictable . Not a Pilot Sport standard. Skids in dry road. This tyre compares with budget tyre. Would not by again.
(2)

Reifentest.com

List price*  429.00 £
just  301.53 £
limited stock
Details
Free shipping **
Michelin Pilot Sport 4S
Michelin
Michelin
Pilot Sport 4S
255/40 ZR21 (102Y) XL *, EV Suitable, 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
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.

(6)
Average based on 6 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 884622
24.11.2021 from Oliver Mwanza
The driving experience with Michellin tyres is superb. Will always use Michellin till further notice
13.03.2021 from Michael
B road driving with the odd motorway and A road. Excellent grip in all conditions, I bought these over pilot sports as I wanted to use them all year round. As long as the temp is above 6 degrees they are fine to push anything below that proceed with caution but they are certainly not ditch finders. I will be doing track on them aswell mainly due to changeable uk weather these are the perfect tyres to drive to track in with confidence.
17.01.2020 from Kram Kuntz
I find the tyres to have outstanding grip once the tyres are warm, comfort is far better than any other tyre i&#39;ve used, these are the 2 most important aspecs for me, as my driving style is quite enthusiastic, and being a fast rear wheel drive car, the last thing I need is the traction control light lighting up every 5 sec&#39;s, but when these tyres get warm I rarely see it. I&#39;m so impressed with them that I bought another set for my other wheels, they&#39;re the best tyre I&#39;ve ever fitted
(6)

Reifentest.com

List price*  395.50 £
just  308.18 £
In Stock
Details
Free shipping **
Michelin Primacy 5 Energy
Michelin
Michelin
Primacy 5 Energy
255/40 R21 102W XL EV Suitable, with rim protection ridge (FSL)

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance A Wet grip A Noise emissions 70 dB
List price*  406.50 £
just  318.16 £
In Stock
Details
Free shipping **
Michelin Pilot Sport EV
Michelin
Michelin
Pilot Sport EV
255/40 R21 102W XL EV, i, with rim protection ridge (FSL)

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance B 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.

(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
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven 73200
30.01.2025 from Joel
This tyre is unpredictable . Not a Pilot Sport standard. Skids in dry road. This tyre compares with budget tyre. Would not by again.
(2)

Reifentest.com

List price*  410.50 £
just  321.80 £
In Stock
Details
Free shipping **
Michelin Pilot Sport 4 SUV
Michelin
Michelin
Pilot Sport 4 SUV
255/40 R21 102W XL EV Suitable, with rim protection ridge (FSL)

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance A 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  N/A
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven 373000
15.09.2024 from Timbo
Vast improvement in all areas compared to the Dunlops that came off. Particularly comfort and noise are extremely good! Fuel consumption is better, and they&#39;re a good looking tyre also! :-)
(1)

Reifentest.com

List price*  418.50 £
just  325.37 £
limited stock
Details
Free shipping **
Michelin CrossClimate 3 Sport
Michelin
Michelin
CrossClimate 3 Sport
255/40 R21 102Y XL EV Suitable, with rim protection ridge (FSL)

Season

 All-season tyres
2 - 4 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance B Wet grip A Noise emissions 72 dB
List price*  448.50 £
just  330.35 £
In Stock
Details
Free shipping **
Michelin Pilot Sport EV
Michelin
Michelin
Pilot Sport EV
255/40 R21 102W XL Acoustic, EV, POL, with rim protection ridge (FSL) FRV

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance B 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.

(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
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven 73200
30.01.2025 from Joel
This tyre is unpredictable . Not a Pilot Sport standard. Skids in dry road. This tyre compares with budget tyre. Would not by again.
(2)

Reifentest.com

List price*  446.00 £
just  345.95 £
In Stock
Details
Free shipping **
Michelin Pilot Sport 4S
Michelin
Michelin
Pilot Sport 4S
HL255/40 ZR21 (105Y) XL EV Suitable, MO1, with rim protection ridge (FSL)

Season

 Summer tyres
1 - 2 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C 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.

(6)
Average based on 6 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 884622
24.11.2021 from Oliver Mwanza
The driving experience with Michellin tyres is superb. Will always use Michellin till further notice
13.03.2021 from Michael
B road driving with the odd motorway and A road. Excellent grip in all conditions, I bought these over pilot sports as I wanted to use them all year round. As long as the temp is above 6 degrees they are fine to push anything below that proceed with caution but they are certainly not ditch finders. I will be doing track on them aswell mainly due to changeable uk weather these are the perfect tyres to drive to track in with confidence.
17.01.2020 from Kram Kuntz
I find the tyres to have outstanding grip once the tyres are warm, comfort is far better than any other tyre i&#39;ve used, these are the 2 most important aspecs for me, as my driving style is quite enthusiastic, and being a fast rear wheel drive car, the last thing I need is the traction control light lighting up every 5 sec&#39;s, but when these tyres get warm I rarely see it. I&#39;m so impressed with them that I bought another set for my other wheels, they&#39;re the best tyre I&#39;ve ever fitted
(6)

Reifentest.com

List price*  516.00 £
just  418.32 £
limited stock
Details
Free shipping **
Show all the tyres in the selected size
Crosswind Sport Peak C/S
Crosswind
Sport Peak C/S
255/40 R21 102W XL

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
just  98.31 £
In Stock
Details
Free shipping **
Blackarrow P15A
Blackarrow
P15A
255/40 ZR21 102W XL

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance B Wet grip B Noise emissions 72 dB
just  101.91 £
In Stock
Details
Free shipping **
Atlas Green EV
Atlas
Green EV
255/40 R21 102Y XL EV

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  108.65 £
In Stock
Details
Free shipping **
AUSTONE Glacia Snow
AUSTONE
Glacia Snow
255/40 R21 102T XL

Season

 Winter tyres
2 - 4 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip D Noise emissions 73 dB
just  109.14 £
limited stock
Details
Free shipping **
Superia EcoBlue EV
Superia
EcoBlue EV
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 72 dB
just  112.66 £
In Stock
Details
Free shipping **
Unistar Ice Protection
Unistar
Ice Protection
255/40 R21 102H XL

Season

 Winter tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip D Noise emissions 73 dB
just  112.84 £
In Stock
Details
Free shipping **
Linglong Sport Master C/S
Linglong
Linglong
Sport Master C/S
255/40 R21 102W XL

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip A Noise emissions 73 dB
just  113.48 £
In Stock
Details
Free shipping **
Kustone Passion P9S
Kustone
Passion P9S
255/40 R21 102W

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance B Wet grip B Noise emissions 72 dB
just  123.47 £
In Stock
Details
Free shipping **
Radar Dimax Sport
Radar
Radar
Dimax Sport
255/40 ZR21 102Y XL EVc

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance B Wet grip B Noise emissions 70 dB
just  126.10 £
In Stock
Details
Free shipping **
Gripmax SureGrip Pro Sport
Gripmax
SureGrip Pro Sport
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 A Noise emissions 73 dB
just  126.90 £
In Stock
Details
Free shipping **
Comforser PureSpeed
Comforser
PureSpeed
255/40 ZR21 102Y XL

Season

 All-season tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 73 dB
just  128.39 £
limited stock
Details
Free shipping **
Lanvigator Catch Power Plus
Lanvigator
Catch Power Plus
255/40 ZR21 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 72 dB
just  133.59 £
In Stock
Details
Free shipping **
Triangle EffeXSport TH202
Triangle
Triangle
EffeXSport TH202
255/40 R21 102Y 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 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  N/A
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven 241812
26.02.2025 from Phillip 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  133.98 £
limited stock
Details
Free shipping **
Zmax X-Super 88
Zmax
X-Super 88
255/40 ZR21 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  135.53 £
limited stock
Details
Free shipping **
Atlas Green 3 4S
Atlas
Green 3 4S
255/40 R21 102W XL

Season

 All-season tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip B Noise emissions 70 dB
just  136.67 £
In Stock
Details
Free shipping **
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** Prices include VAT and delivery within mainland UK (excl. Scottish Highlands).

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