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Home  >  Summer tyres  >  275 / 45 21  >  Radar Tyres  >  Radar 275 / 45 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:
 
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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  Radar   275/45  21    Summer tyres 

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Prices include VAT and delivery within Ireland

Radar Dimax R8+
Radar
Radar
Dimax R8+
275/45 ZR21 110Y XL, EVc

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 73dB
just  120.75 £
limited stock
Details
Show all the tyres in the selected size
Lanvigator Catch Power Plus
Lanvigator
Catch Power Plus
275/45 ZR21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  116.81 £
limited stock
Details
Royal Black Explorer II
Royal Black
Explorer II
275/45 ZR21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  154.04 £
limited stock
Details
Sailun Atrezzo ZSR
Sailun
Sailun
Atrezzo ZSR
275/45 ZR21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 72dB
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 driven220690
20.12.2019fromGareth
Our other car is a kuga and if I was reviewing it on that it would be a differant review however given the car has over 300lb/ft of torque these aren't the tyres you want on the rears (they were on the car when I bought it). In the wet the traction control light is a permenant fixture if I get spirited and corners can be challenging if taken with some gusto so in short on a focus or an Astra fine but something with a bit of oomph I would pass on them and spend a bit more. You'll only end up taking them off
(1)

Reifentest.com

just  156.21 £
limited stock
Details
Mazzini Eco 602
Mazzini
Eco 602
275/45 ZR21 110W XL

Tyre type

 Summer tyres
limited stock
just  156.59 £
limited stock
Details
Sonix Prime UHP 08
Sonix
Prime UHP 08
275/45 ZR21 110W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  166.06 £
available
Details
Kumho Ecsta PS71 SUV
Kumho
Kumho
Ecsta PS71 SUV
275/45 ZR21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 73dB
just  166.38 £
available
Details
Maxxis Victra Sport 5
Maxxis
Maxxis
Victra Sport 5
275/45 ZR21 110Y XL, SUV

Tyre type

 Summer tyres
limited stock
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.

(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 driven269003
(1)

Reifentest.com

just  175.22 £
limited stock
Details
Hankook Ventus evo K137A
Hankook
Hankook
Ventus evo K137A
275/45 ZR21 110Y XL 4PR, SUV SBL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 71dB
just  195.87 £
available
Details
Hankook Ventus S1 Evo 3 K127A
Hankook
Hankook
Ventus S1 Evo 3 K127A
275/45 ZR21 110Y XL 4PR, SUV SBL

Tyre type

 Summer tyres
limited stock
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
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven171536
03.09.2025fromRuss
The Tyres give good grip and little noise. They grip Well in the dry and seem ok in wet
(1)

Reifentest.com

just  238.20 £
limited stock
Details
Bridgestone Potenza Sport Evo
Bridgestone
Bridgestone
Potenza Sport Evo
275/45 ZR21 110(Y) XL, Enliten / EV

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 73dB
just  239.97 £
limited stock
Details
Michelin Pilot Sport 4 SUV
Michelin
Michelin
Pilot Sport 4 SUV
275/45 ZR21 110Y XL MO1, EV Suitable

Tyre type

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

(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 driven373000
15.09.2024fromTimbo
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're a good looking tyre also! :-)
(1)

Reifentest.com

just  279.12 £
available
Details
Pirelli P Zero PZ5
Pirelli
Pirelli
P Zero PZ5
275/45 ZR21 114(Y) XL PNCS MO1 A

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance AWet grip ANoise emissions 69dB
just  420.14 £
limited stock
Details
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Prices include VAT and delivery within mainland UK (excl. Scottish Highlands).

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