Customer Support (Mo-Fr 7am-8pm):

03308220182

Customer Support (Mo-Fr 7am-8pm):

03308220182

Order status
Contact
0Shopping Cart0.00 £
  1. Home
  2. Summer tyres
  3. 255 / 40 21
Summer tyres - optimal grip guaranteed!
On dry roads or mild weather, your tyres have to face some increased demands and must always meet safety standards. Compared to winter tyres, the rubber mixture of the summer tyres is harder, even in high temperatures. Default rolling resistance and wear are smaller, resulting in a greater lifespan, comfort and increased stability. Choose now from our offer your summer tyres at an affordable price. Our portfolio includes a wide range of tyre brands
 
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  255/40  21  Summer tyres 

search by size: 65 Results - Offers per page:

Sort by:  

Details

Add product to compare

Prices include VAT and delivery within Ireland

Bridgestone Turanza 6
Bridgestone
Bridgestone
Turanza 6
255/40 R21 102T XL (+), B-Seal, Enliten / EV, R0, with rim protection (MFS)

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance AWet grip ANoise emissions 69dB
List price*  409.00 £
just  258.23 £
In Stock
Details
Free shipping**
Michelin Pilot Sport 5
Michelin
Michelin
Pilot Sport 5
255/40 R21 102Y XL Acoustic, with rim protection ridge (FSL)

Season

 Summer tyres
2 - 4 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance BWet grip ANoise emissions 72dB
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 driven331534
16.08.2024fromJan Olsen
My size tire was not available on the site, it&#39;s 21&quot; and not 18&quot;. My experience is maybe unique to Tesla cars, but it has only 1-2mm left after 17000 km. With Hankook and Pirelli, I&#39;ve gotten better milage... The tire can suddenly lose grip in aqua planing conditions, which I did experience once on the highway - and not with any other tire. But maybe all tires would have this issue under the same conditions. My main issue is that the tire wears our very quickly especially on the rim area, making tires wear out prematurely and they easily puncture if not detected (can see white threads, but not visible easily if on the inner rim). Some of this is likely due to Tesla ABS system activating easily in sharp curves, as I have not experienced these issues with other car brands. Both model 3 and model S have this issue. These tires I need to replace quicker than 17000 km as one of tires has just approx 1mm thread.
07.06.2024fromMalcolm McKay
I chose the Pilot Sport 5s for my car for 6000 miles of arduous driving, leading a classic car rally around all of Greece. We were heavily laden and driving hard on very mixed surfaces. The Pilot Sports never let us down and showed impressive grip throughout. Even better, 10,000km later they have worn remarkably little, and very evenly. The sister car was on Toyos which admittedly are cheaper, but showed a LOT more wear.
22.08.2022fromJustin
Size = 255/40/19. I had the Pilot sport 4 on the front, went for the PS5 on the back as they were just available and they were great. I would definitely go for them again but I just changed my car and it looks like Michelin do not support the new size tyres (305/30/ZR21) but I will keep checking Michelin.
(3)

Reifentest.com

just  185.00 £
In Stock
Details
Free shipping**
Yokohama Advan Sport (V107G)
Yokohama
Yokohama
Advan Sport (V107G)
255/40 R21 102Y XL *, RPB

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance AWet grip ANoise emissions 70dB
List price*  382.00 £
just  237.22 £
In Stock
Details
Free shipping**
Barum Bravuris 6
Barum
Barum
Bravuris 6
255/40 R21 102T XL EVc, with kerbing rib

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance BWet grip ANoise emissions 72dB
List price*  228.50 £
just  178.15 £
In Stock
Details
Free shipping**
Firestone Roadhawk 2
Firestone
Firestone
Roadhawk 2
255/40 R21 102Y XL Enliten / EV, with rim protection (MFS)

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance AWet grip ANoise emissions 71dB
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 driven250294
29.07.2025fromTom
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

List price*  264.00 £
just  179.92 £
In Stock
Details
Free shipping**
Nexen N Fera Sport
Nexen
Nexen
N Fera Sport
255/40 ZR21 102Y XL 4PR RPB

Season

 Summer tyres
2 - 4 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance CWet grip ANoise emissions 73dB
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 driven504298
06.10.2022fromJohn
Handling it depends from road quality, but never excellent. Steering feeling is good. Breaking on dry roads insufficient, ABS function even in middle breaking situations. Very low noise,
(2)

Reifentest.com

List price*  295.00 £
just  152.37 £
limited stock
Details
Free shipping**
Semperit Speed-Life 3
Semperit
Semperit
Speed-Life 3
255/40 R21 102Y XL EVc, with kerbing rib

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance CWet grip ANoise emissions 73dB
List price*  333.50 £
just  212.04 £
limited stock
Details
Free shipping**
Lanvigator Catch Power Plus
Lanvigator
Catch Power Plus
255/40 ZR21 102Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance CWet grip BNoise emissions 72dB
just  96.44 £
In Stock
Details
Free shipping**
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 CWet grip ANoise emissions 73dB
just  100.12 £
In 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 CWet grip BNoise emissions 72dB
just  100.95 £
In Stock
Details
Free shipping**
Kustone Passion P9S
Kustone
Passion P9S
255/40 R21 102W

Season

 Summer tyres
1 - 2 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance BWet grip BNoise emissions 72dB
just  111.21 £
limited 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 BWet grip BNoise emissions 70dB
just  117.04 £
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 CWet grip BNoise emissions 72dB
just  121.27 £
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 CWet grip ANoise emissions 73dB
just  127.13 £
In Stock
Details
Free shipping**
Nankang Sportnex AS-3
Nankang
Nankang
Sportnex AS-3
255/40 ZR21 102Y XL [EV+], with rim protection (MFS)

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance CWet grip ANoise emissions 73dB
just  130.64 £
In Stock
Details
Free shipping**
Linglong Sport Master C/S
Linglong
Linglong
Sport Master C/S
255/40 R21 102W XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance CWet grip ANoise emissions 73dB
just  134.81 £
In 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 CWet grip BNoise emissions 71dB
just  140.52 £
limited stock
Details
Free shipping**
Zelda Archforce
Zelda
Archforce
255/40 ZR21 102W XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance CWet grip BNoise emissions 72dB
just  140.60 £
In Stock
Details
Free shipping**
Grenlander Estrella 88
Grenlander
Estrella 88
255/40 ZR21 102Y XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance CWet grip BNoise emissions 71dB
just  149.97 £
limited stock
Details
Free shipping**
Prinx Xnex Sport EV
Prinx
Xnex Sport EV
255/40 R21 102Y XL EV, with rim protection (MFS)

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance BWet grip BNoise emissions 71dB
just  150.33 £
limited stock
Details
Free shipping**
Fortune FSR-303
Fortune
FSR-303
255/40 R21 102Y XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance CWet grip CNoise emissions 73dB
just  154.33 £
limited stock
Details
Free shipping**
Linglong Sport Master C/S
Linglong
Linglong
Sport Master C/S
255/40 R21 102W XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance CWet grip ANoise emissions 73dB
just  157.69 £
In Stock
Details
Free shipping**
Toyo Proxes Sport 2
Toyo
Toyo
Proxes Sport 2
255/40 R21 102Y XL with rim protection ridge (FSL)

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance CWet grip ANoise emissions 71dB
just  178.29 £
In Stock
Details
Free shipping**
Kumho Ecsta Sport PS72
Kumho
Kumho
Ecsta Sport PS72
HL255/40 R21 105Y XL with rim protection ridge (FSL)

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance CWet grip ANoise emissions 73dB
List price*  342.37 £
just  180.47 £
In Stock
Details
Free shipping**
Winrun R330 W-Silent
Winrun
R330 W-Silent
255/40 ZR21 102W XL EV, W-Silent

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance BWet grip BNoise emissions 71dB
just  198.81 £
In Stock
Details
Free shipping**
There are 28 of 65 tyres displayed
‹
›
Items per page
**Prices include VAT and delivery within mainland UK (excl. Scottish Highlands).

Newsletter

Be the first to know about new products, exclusive offers and promotions. Register now for the Tirendo.co.uk newsletter.

Free shipping
30 days return policy
Directly to your door
Customer Support: 03308220182

Popular manufacturers

Popular tyre models

Tyres and dimensions

Information

Our offers

A service brought to you byDelticom