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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:
 
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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  Avon   275/45  21     

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Avon ZX7
Avon
Avon
ZX7
275/45 R21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise 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.

(5)
Average based on 5 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 driven195495
11.03.2022fromDavid
I have been an Avon fan for nearly 50 years and currently have 4 of their tyres on my SUV. I've just received an MOT advisory warning that the front 2 are perishing, after only 2 years and 6000 miles of normal use (ie no off road use) - see photo. I've submitted a warranty request to the company and will update this review, based on the response I get. UPDATE - The response I've received from Avon is that I have to return my car to the garage who fitted the tyres, then get them to remove the tyres and send them back to Avon. That means I have to leave my car sitting on the garage forecourt on its rims for as long as it takes Avon to uplift, examine and report on the tyres. If Avon deem the ZX7s to be faulty, they will refund on the basis of how much tread is left compared to new, but if they think the tyres are 'within normal specification', they will return them to the garage, to be refitted. As an alternative, Avon suggest that I simply buy 2 new tyres, before sending my originals back. That way I don't lose the use of my car, but what happens if they decide that they won't honour my warranty claim? I'll then have 2 sets of tyres! And who pays the garage to do all this work? If ever there was a procedure designed to hamper a consumer making a warranty claim, then this has to be it. No goodwill from Avon, no acceptance of what an accredited long standing garage or a qualified MOT inspector says. Just a robotic insistence to follow a claims procedure that severely inconveniences customers. All tyres perish eventually, but not usually after only 2 years and 6,000 miles of normal UK use - and not usually in the valley of the tread (which is dangerous, because it's closer to the structural carcas of the tyre). If my situation was a one off, you could just put it down to bad luck, but a quick internet search reveals plenty of other people with Avon tyres failing in exactly the same way. Bearing in mind that if you buy Avons and they perish like mine, you will be expected to jump through the hoops I have described above to make a warranty claim, the only logical advice I can give is that everyone avoids buying Avon tyres in the first place. FOOTNOTE - in terms of performance, I thought that the ZX7s were quieter than the Continentals that came with the car, but inferior in every other way, particularly economy. Anyway, what does performance matter, if a tyre perishes after only 2 years and 6,000 miles of use?
22.06.2019fromSpeegles
This is the 3rd set of ZX7s on my Rav4. I'm getting 35000km off each set, and they are nothing short of fantastic. My partner also has them in her B class Mercedes, again, excellent
(5)

Reifentest.com

just  207.84 £
limited stock
Details
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Accelera Iota ST-68
Accelera
Accelera
Iota ST-68
275/45 R21 101V XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 68dB
just  94.47 £
available
Details
Road Rider Strada SUV
Road Rider
Strada SUV
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  96.87 £
available
Details
APlus A610
APlus
A610
275/45 R21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  97.60 £
limited stock
Details
AUSTONE Athena SP-303
AUSTONE
Athena SP-303
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 73dB
just  106.99 £
available
Details
Rockblade Rock 525
Rockblade
Rock 525
275/45 R21 110W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  107.79 £
limited stock
Details
Triangle Effexsport TH202
Triangle
Triangle
Effexsport TH202
275/45 R21 110Y

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  108.51 £
available
Details
Superia EcoBlue EV
Superia
EcoBlue EV
275/45 R21 110W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  113.45 £
available
Details
Leao Nova Force C/S
Leao
Leao
Nova Force C/S
275/45 R21 110W XL

Tyre type

 Summer tyres
available
just  116.17 £
available
Details
Tracmax X-Privilo S330
Tracmax
X-Privilo S330
275/45 R21 110V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 73dB
just  116.34 £
available
Details
Crosswind Sport Peak C/S
Crosswind
Sport Peak C/S
275/45 R21 110W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 73dB
just  117.36 £
available
Details
Minerva Ecospeed 2 SUV
Minerva
Minerva
Ecospeed 2 SUV
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  118.32 £
available
Details
RoadX SU01
RoadX
SU01
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  122.09 £
available
Details
Imperial Ecosport SUV
Imperial
Imperial
Ecosport SUV
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  123.08 £
available
Details
Triangle TR259 Advantex SUV
Triangle
Triangle
TR259 Advantex SUV
275/45 R21 110Y XL, SUV

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise 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
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven48000
26.10.2025fromNeil
Exceeded all expectations. I have driven hundreds of thousand miles in various performance cars. These tyres are great.
(1)

Reifentest.com

just  123.27 £
available
Details
RoadX RXQuest Sport SUV
RoadX
RXQuest Sport SUV
275/45 R21 110W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 71dB
just  125.74 £
available
Details
Arivo Winmaster ARW 5
Arivo
Winmaster ARW 5
275/45 R21 110H XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip DNoise emissions 71dB
just  127.17 £
limited stock
Details
Tristar Snowpower UHP
Tristar
Tristar
Snowpower UHP
275/45 R21 101V XL

Tyre type

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

(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 driven1167530
(4)

Reifentest.com

just  127.75 £
available
Details
Gripmax SureGrip Pro Sport
Gripmax
SureGrip Pro Sport
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 73dB
just  128.67 £
available
Details
Landsail RapidDragon SUV
Landsail
Landsail
RapidDragon SUV
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 72dB
just  129.25 £
available
Details
Sailun Atrezzo ZSR2 SUV
Sailun
Sailun
Atrezzo ZSR2 SUV
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 72dB
just  129.41 £
available
Details
Cooper Zeon 4XS Sport
Cooper
Cooper
Zeon 4XS Sport
275/45 R21 110Y XL

Tyre type

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

(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 driven761778
15.06.2024fromA. Blackburn
This is the second set of the same tyres I have put on my XC90 - mileage driven reflects use of both sets. They are sure-footed and comfortable, and inspire confidence. No hesitation in buying more of the same.
(2)

Reifentest.com

just  131.69 £
available
Details
Linglong Grip Master C/S
Linglong
Linglong
Grip Master C/S
275/45 R21 110W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 73dB
just  132.81 £
available
Details
Minerva Frostrack UHP
Minerva
Minerva
Frostrack UHP
275/45 R21 110V XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise 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
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven33000
(1)

Reifentest.com

just  134.79 £
limited stock
Details
General Grabber GT Plus
General
General
Grabber GT Plus
275/45 R21 110Y XL, EVc

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 73dB
just  146.68 £
limited stock
Details
Tracmax X Privilo RS01
Tracmax
X Privilo RS01
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
just  147.96 £
available
Details
Ilink Snowgripper 2
Ilink
Snowgripper 2
275/45 R21 110H XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip DNoise emissions 71dB
just  152.12 £
available
Details
Chengshan CSC-303
Chengshan
Chengshan
CSC-303
275/45 R21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 73dB
just  152.67 £
limited stock
Details
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Prices include VAT and delivery within mainland UK (excl. Scottish Highlands).

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