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  4. Semperit 255 / 40 21
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  Semperit  255/40  21   

search by size: 3 Results - Offers per page:

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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  288.57 £
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  301.54 £
limited stock
Details
Free shipping **
Continental Viking Contact 7
Continental
Continental
Viking Contact 7
255/40 R21 102T XL EVc, Nordic Compound, with kerbing rib

Season

 Winter tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip D Noise emissions 72 dB
just  307.93 £
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  308.81 £
In Stock
Details
Free shipping **
Pirelli P Zero PZ4 SC
Pirelli
Pirelli
P Zero PZ4 SC
255/40 R21 102Y XL *, PNCS, Seal Inside, with rim protection (MFS)

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance B Wet grip A Noise emissions 68 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.

(15)
Average based on 15 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 2702975
18.09.2022 from DAVID
These are as close to perfect summer tyres that I have come across in more than 50+ years of spirited driving. Wet grip is of great importance, and these tyres are actually AO, which I always purchase, as I understand that grip was paramount in AUDIs requirements. The car is a modified 25th Anniversary model and is fitted with SACHS Race Engineering Coil-Over suspension. The cylinder head has been ported and polished with the motor now producing well over 200 ps.
14.06.2021 from y2kdisease
Car had 20&quot; 245/35r20 runflats in front and 275/30r20 runflats (all MOE) for RWD w213 luxury saloon. The car came with these factory fitted MOE runflat tyres. I&#39;ve Replaced these tyres and wheels at 10600km. I&#39;ve driven 8600km of that mileage. The tyres wore like rubber bands on the 20&quot; wheels. Steering as a result is very precise in both wet and dry. Front 245/30s have sound deadening foam and overall tyre noise is quiet in the cabin (but just wee bit louder than the 18&quot; PS4 tyres I replaced them with). Ride comfort is 8/10 on highways due to air suspension. On chip seal, speed humps, potholed roads ride comfort is 5/10 - there is very abrupt jarring transmitted to cabin due to tyre profile and rims. Wet grip in cold (5&#39;C) and damp country highways was 7/10 at 110km/h speeds - there was some slip noticeable. Dry grip was 8/10 most of the time but with occasional rear traction slips at highway speeds in curves. This combination of tyres and rims is quite poor for a luxury sedan and compliant rides.
06.06.2020 from Chris Farnell
These tyres are great. Low road noise, and surprisingly grippy in the wet. Like really grippy
12.06.2019 from Tony Galloni
I have used Pirelli P Zeros for about 15 yrs and they are a great tyre
(15)

Reifentest.com

List price*  522.00 £
just  313.94 £
limited stock
Details
Free shipping **
Pirelli P Zero Winter
Pirelli
Pirelli
P Zero Winter
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 B Noise emissions 72 dB
List price*  429.00 £
just  314.33 £
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  318.81 £
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  322.46 £
In Stock
Details
Free shipping **
Continental ContiSportContact 5 P
Continental
Continental
ContiSportContact 5 P
255/40 ZR21 102Y XL MO, with kerbing rib

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.

(8)
Average based on 8 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 3796353
07.01.2022 from John S.
Not a sport tyre. Very disappointment.
26.11.2020 from Alan Burton
Steady, now I&#39;m over 70, with the occasional speed burst for fun. Usually stick to speed limits now.
26.04.2020 from Keith Stagner
Quiet &amp; grips well. Gouges very easily on curbs when parking
27.08.2019 from MIKE
OE FITMENT NEVER HAD A PROBLEM AN EXCELLENT ALL ROUND PERFORMANCE TYRE.
(8)

Reifentest.com

just  325.77 £
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  326.04 £
limited stock
Details
Free shipping **
Continental SportContact 6
Continental
Continental
SportContact 6
255/40 R21 102Y XL *, with kerbing rib

Season

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

(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 1294578
16.12.2023 from Claudiu
The experience was not that bad with this tyres except the fact that i should change them after 30-35 000 km. They are not that quiet it should be, the consumption of the car was lower than the competion but the tyre wear is not ok.
(2)

Reifentest.com

just  330.98 £
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  330.99 £
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  346.65 £
In Stock
Details
Free shipping **
Continental IceContact 3
Continental
Continental
IceContact 3
255/40 R21 102T XL, studded, with kerbing rib

Season

 Winter tyres
2 - 4 working days delivery time
limited stock
just  350.82 £
limited stock
Details
Free shipping **
Continental WinterContact TS 870 P
Continental
Continental
WinterContact TS 870 P
255/40 R21 102V XL EVc, with kerbing rib

Season

 Winter 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.

(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 528879
08.02.2023 from Martin Green
farm use fairly mixed road/ off road
(1)

Reifentest.com

just  358.85 £
In Stock
Details
Free shipping **
Continental VikingContact 8
Continental
Continental
VikingContact 8
255/40 R21 102H XL EVc, Nordic Compound

Season

 Winter tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance A Wet grip D Noise emissions 70 dB
just  373.32 £
In Stock
Details
Free shipping **
Pirelli P Zero PZ5
Pirelli
Pirelli
P Zero PZ5
255/40 R21 102Y XL Elect, I*, PNCS

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*  524.00 £
just  375.46 £
In Stock
Details
Free shipping **
Continental PremiumContact C
Continental
Continental
PremiumContact C
HL255/40 R21 105W XL ContiSilent, EVc, with kerbing rib

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
List price*  503.00 £
just  376.52 £
limited stock
Details
Free shipping **
Bridgestone Turanza 6
Bridgestone
Bridgestone
Turanza 6
255/40 R21 102Y XL *, B-Silent, with rim protection (MFS)

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance A Wet grip B Noise emissions 69 dB
just  378.76 £
In Stock
Details
Free shipping **
Continental IceContact 8
Continental
Continental
IceContact 8
255/40 R21 102T XL EVc, studded, with kerbing rib

Season

 Winter tyres
2 - 5 working days delivery time
limited stock
just  384.64 £
limited stock
Details
Free shipping **
Continental PremiumContact C
Continental
Continental
PremiumContact C
255/40 R21 102W XL EVc, with kerbing rib

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
List price*  435.00 £
just  390.68 £
limited stock
Details
Free shipping **
Pirelli P Zero E RunForward
Pirelli
Pirelli
P Zero E RunForward
HL255/40 R21 105Y XL *, Elect, runflat

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance A Wet grip A Noise emissions 67 dB
List price*  614.00 £
just  415.17 £
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  418.40 £
limited stock
Details
Free shipping **
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