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Home  >  275 / 45 21  >  Roadcruza  >  Roadcruza 275 / 45 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:
 
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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  Roadcruza    275/45  21     

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Prices include VAT and delivery within Ireland

Roadcruza RA1100
Roadcruza
RA1100
275/45 R21 113/110S

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip E Noise emissions 75 dB
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 driven 421848
21.05.2024 from Scott
Worse tyre ive had in the wet, very dangerous round round abouts and after 40,000km there nearly worn out
(2)

Reifentest.com

just  214.47 £
available
Details
Show all the tyres in the selected size
Leao Nova Force C/S
Leao
Leao
Nova Force C/S
275/45 R21 110W XL

Tyre type

 Summer tyres
available
just  95.22 £
available
Details
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 C Wet grip C Noise emissions 68 dB
just  99.74 £
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 C Wet grip B Noise emissions 71 dB
just  98.39 £
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 C Wet grip B Noise emissions 72 dB
just  103.28 £
limited stock
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 C Wet grip B Noise emissions 71 dB
just  111.72 £
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 C Wet grip C Noise emissions 73 dB
just  114.52 £
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 B Wet grip A Noise emissions 71 dB
just  116.04 £
available
Details
AUSTONE Athena SP-303
AUSTONE
Athena SP-303
275/45 R21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip C Noise emissions 73 dB
just  116.61 £
limited stock
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 C Wet grip A Noise emissions 73 dB
just  117.49 £
available
Details
RoadX SU01
RoadX
SU01
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 71 dB
just  119.90 £
available
Details
Triangle AdvanteX SUV TR259
Triangle
Triangle
AdvanteX SUV TR259
275/45 R21 110Y XL, SUV

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip C Noise emissions 73 dB
just  120.66 £
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 B Wet grip A Noise emissions 72 dB
just  123.29 £
available
Details
Tristar Snowpower UHP
Tristar
Tristar
Snowpower UHP
275/45 R21 101V XL, with rim protection (MFS)

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip C Noise emissions 73 dB
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 driven 1167530
(4)

Reifentest.com

just  123.98 £
available
Details
Admiral GRB009
Admiral
GRB009
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 71 dB
just  126.29 £
available
Details
Minerva Frostrack UHP
Minerva
Minerva
Frostrack UHP
275/45 R21 110V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip C Noise emissions 73 dB
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 driven 33000
(1)

Reifentest.com

just  129.41 £
available
Details
Gripmax SureGrip Pro Sport
Gripmax
SureGrip Pro Sport
275/45 R21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip A Noise emissions 73 dB
just  129.85 £
limited stock
Details
Dynamo MSU01
Dynamo
MSU01
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 71 dB
just  131.88 £
available
Details
Churchill GRB009
Churchill
GRB009
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 71 dB
just  132.73 £
available
Details
Dynamo Street-H Pursuit SUV
Dynamo
Street-H Pursuit SUV
275/45 R21 110W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance B Wet grip A Noise emissions 71 dB
just  136.08 £
available
Details
Minerva Ecospeed 2 SUV
Minerva
Minerva
Ecospeed 2 SUV
275/45 R21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip C Noise emissions 72 dB
just  142.17 £
limited stock
Details
Ilink Snowgripper 2
Ilink
Snowgripper 2
275/45 R21 110H XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip D Noise emissions 71 dB
just  144.43 £
limited stock
Details
Zeetex SU5000 Max
Zeetex
Zeetex
SU5000 Max
275/45 R21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance B Wet grip B Noise emissions 71 dB
just  144.60 £
limited stock
Details
Unigrip Lateral Force Sport
Unigrip
Unigrip
Lateral Force Sport
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance B Wet grip B Noise emissions 73 dB
just  146.65 £
available
Details
APlus A610
APlus
A610
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 72 dB
just  148.68 £
available
Details
Linglong Grip Master C/S
Linglong
Linglong
Grip Master C/S
275/45 R21 110W XL, with kerbing rib

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip A Noise emissions 73 dB
just  151.45 £
limited stock
Details
GT Radial SportActive 2
GT Radial
GT Radial
SportActive 2
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip A Noise emissions 69 dB
just  155.27 £
available
Details
Firestone Roadhawk 2
Firestone
Firestone
Roadhawk 2
275/45 R21 110Y XL, with rim protection (MFS), Enliten / EV

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance B Wet grip A Noise emissions 71 dB
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 driven 297808
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 "step-out" 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

just  159.03 £
limited stock
Details
There are 28 of 138 tyres displayed
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Prices include VAT and delivery within mainland UK (excl. Scottish Highlands).

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