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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  Starmaxx  275/45  21   

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

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 73 dB
just  136.14 £
In Stock
Details
Free shipping **
Zeetex HP6000 Eco
Zeetex
Zeetex
HP6000 Eco
275/45 ZR21 110W XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 73 dB
just  138.83 £
limited stock
Details
Free shipping **
Transmate Sport D1
Transmate
Sport D1
275/45 ZR21 110Y

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 71 dB
just  140.40 £
In Stock
Details
Free shipping **
Imperial Ecosport SUV
Imperial
Imperial
Ecosport SUV
275/45 R21 110Y XL

Season

 Summer tyres
2 - 4 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 72 dB
just  140.54 £
limited stock
Details
Free shipping **
Tracmax X Privilo RS-01 Plus
Tracmax
X Privilo RS-01 Plus
275/45 ZR21 110W XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 72 dB
just  140.94 £
limited stock
Details
Free shipping **
Minerva Ecospeed 2 SUV
Minerva
Minerva
Ecospeed 2 SUV
275/45 R21 110Y XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 72 dB
just  141.39 £
limited stock
Details
Free shipping **
Zeetex SU5000 Max
Zeetex
Zeetex
SU5000 Max
275/45 R21 110Y XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance B Wet grip B Noise emissions 71 dB
just  143.85 £
limited stock
Details
Free shipping **
Ilink Snowgripper 2
Ilink
Snowgripper 2
275/45 R21 110H XL

Season

 Winter tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip D Noise emissions 71 dB
just  144.46 £
limited stock
Details
Free shipping **
Vredestein Ultrac Vorti+
Vredestein
Vredestein
Ultrac Vorti+
275/45 ZR21 (110Y) XL with rim protection ridge (FSL)

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip B Noise emissions 71 dB
just  145.10 £
In Stock
Details
Free shipping **
Unigrip Lateral Force Sport
Unigrip
Unigrip
Lateral Force Sport
275/45 R21 110Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance B Wet grip B Noise emissions 73 dB
just  145.88 £
In Stock
Details
Free shipping **
Sentury Seasonsdragon 2
Sentury
Seasonsdragon 2
275/45 ZR21 110W XL

Season

 All-season tyres
2 - 4 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance B Wet grip B Noise emissions 73 dB
just  148.19 £
limited stock
Details
Free shipping **
GT Radial SportActive 2
GT Radial
GT Radial
SportActive 2
275/45 R21 110Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip A Noise emissions 69 dB
just  152.03 £
In Stock
Details
Free shipping **
APlus A610
APlus
A610
275/45 R21 110Y 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  157.79 £
In Stock
Details
Free shipping **
Firestone Roadhawk 2
Firestone
Firestone
Roadhawk 2
275/45 R21 110Y XL Enliten / EV, 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 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  N/A
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven 280800
29.07.2025 from Tom
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*  289.00 £
just  158.10 £
limited stock
Details
Free shipping **
Dynamo Street-H Pursuit SUV
Dynamo
Street-H Pursuit SUV
275/45 R21 110W XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance B Wet grip A Noise emissions 71 dB
just  158.14 £
limited stock
Details
Free shipping **
Sailun Atrezzo ZSR
Sailun
Sailun
Atrezzo ZSR
275/45 ZR21 110Y XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip A 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
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven 230700
20.12.2019 from Gareth
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&#39;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&#39;ll only end up taking them off
(1)

Reifentest.com

just  158.28 £
limited stock
Details
Free shipping **
Sonix Prime UHP 08
Sonix
Prime UHP 08
275/45 ZR21 110W XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 72 dB
just  160.24 £
limited stock
Details
Free shipping **
Kumho Ecsta PS71 SUV
Kumho
Kumho
Ecsta PS71 SUV
275/45 ZR21 110Y XL with rim protection ridge (FSL)

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
List price*  307.84 £
just  164.38 £
In Stock
Details
Free shipping **
Momo Toprun M-30 Europa
Momo
Toprun M-30 Europa
275/45 R21 110Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 73 dB
just  165.79 £
In Stock
Details
Free shipping **
Fronway Eurus 08
Fronway
Eurus 08
275/45 R21 110W XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 72 dB
just  166.84 £
limited stock
Details
Free shipping **
Gripmax Suregrip Pro Winter
Gripmax
Suregrip Pro Winter
275/45 R21 110V XL

Season

 Winter tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 72 dB
just  168.09 £
In Stock
Details
Free shipping **
Sonix Winter Xpro 999
Sonix
Winter Xpro 999
275/45 R21 110H XL

Season

 Winter tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip D Noise emissions 71 dB
just  168.70 £
limited stock
Details
Free shipping **
Kumho Ecsta PS71 SUV
Kumho
Kumho
Ecsta PS71 SUV
275/45 ZR21 110Y XL with rim protection ridge (FSL)

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
List price*  307.84 £
just  169.36 £
In Stock
Details
Free shipping **
Zeta Impero
Zeta
Zeta
Impero
275/45 R21 110Y XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance B Wet grip B Noise emissions 73 dB
just  169.43 £
limited stock
Details
Free shipping **
Zmax WinterHawke II
Zmax
WinterHawke II
275/45 R21 110H XL

Season

 Winter tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip D Noise emissions 71 dB
just  169.91 £
In Stock
Details
Free shipping **
Tracmax X-Privilo S360
Tracmax
X-Privilo S360
275/45 R21 110T XL

Season

 Winter tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 72 dB
just  170.26 £
limited stock
Details
Free shipping **
Leao Winter Defender Ice-I15
Leao
Leao
Winter Defender Ice-I15
275/45 R21 107T

Season

 Winter tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance D Wet grip D Noise emissions 73 dB
just  175.97 £
limited stock
Details
Free shipping **
Mazzini Snowleopard 3
Mazzini
Snowleopard 3
275/45 R21 110H, Nordic Compound

Season

 Winter tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 73 dB
just  176.93 £
In Stock
Details
Free shipping **
There are 28 of 165 tyres displayed
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