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Home  >  Winter tyres  >  275 / 45 21  >  Sonix Tyres  >  Sonix 275 / 45 21
Winter tyres - for a save driving on snow and ice.
The "M + S" (or M & S, MS) marking can currently be found on winter and all season tyres. Besides this marking, a snowflake symbol can be found on some models. The M + S tyres that have the snowflake symbol meet the higher quality standards. Since 2011, winter tyres are mandatory in Ireland. Having a special blend of rubber that resists to low temperatures, these tyres are more adapted to winter conditions than the summer tyres. Therefore, the car will have a good grip even dealing with low temperatures. The optimised profile reduces the risk of hydroplaning and provides a good grip in snowy and icy conditions. The larger grooves and the additional blades improve stability when switching from snow to wet and to dry road conditions. We have winter tyres suitable for your car. Choose your favorite brand and place an order online in order to take advantage of our competitive prices!
 
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  Sonix   275/45  21    Winter tyres 

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Sonix Winter Xpro Studs 69
Sonix
Winter Xpro Studs 69
275/45 R21 110T studded

Tyre type

 Winter tyres
available
just  € 203.78
 
available
Details
Show all the tyres in the selected size
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  € 121.21
 
available
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. <span><em>Tyretest.com</em></span> 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  € 132.07
 
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  € 152.78
 
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  € 158.95
 
limited stock
Details
Rotalla Setula W Race S330
Rotalla
Rotalla
Setula W Race S330
275/45 R21 110V 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. <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 driven453693
(2)

Reifentest.com

just  € 159.63
 
available
Details
Grenlander Icehawke II
Grenlander
Icehawke II
275/45 R21 110H XL

Tyre type

 Winter tyres
available
just  € 172.11
 
available
Details
Double Star DW02
Double Star
Double Star
DW02
275/45 R21 110T XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 73dB
just  € 178.93
 
limited stock
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. <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 driven33000
(1)

Reifentest.com

just  € 188.65
 
limited stock
Details
Maxtrek TREK M900 ICE
Maxtrek
Maxtrek
TREK M900 ICE
275/45 R21 110H XL studded

Tyre type

 Winter tyres
available
just  € 196.70
 
available
Details
Grenlander Icedefensor Stud II
Grenlander
Icedefensor Stud II
275/45 R21 110T XL studdable

Tyre type

 Winter tyres
available
just  € 201.45
 
available
Details
Sailun Ice Blazer Arctic
Sailun
Sailun
Ice Blazer Arctic
275/45 R21 110V XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ENoise emissions 72dB
just  € 203.28
 
limited stock
Details
Leao Winter Defender Ice-I15
Leao
Leao
Winter Defender Ice-I15
275/45 R21 107T

Tyre type

 Winter tyres
limited stock
just  € 207.10
 
limited stock
Details
Kumho WinterCraft WS71 SUV
Kumho
Kumho
WinterCraft WS71 SUV
275/45 R21 110V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip CNoise emissions 72dB
just  € 215.87
 
available
Details
Grenlander Icedefensor Stud II
Grenlander
Icedefensor Stud II
275/45 R21 110T XL studded

Tyre type

 Winter tyres
limited stock
just  € 219.27
 
limited stock
Details
Kumho WinterCraft WS71 SUV
Kumho
Kumho
WinterCraft WS71 SUV
275/45 R21 110V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip CNoise emissions 72dB
just  € 219.27
 
available
Details
Yokohama Ice Guard G075
Yokohama
Yokohama
Ice Guard G075
275/45 R21 110Q XL Nordic Compound

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip ENoise emissions 72dB
just  € 227.27
 
available
Details
Momo North Pole W-20
Momo
North Pole W-20
275/45 R21 110V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 73dB
just  € 239.83
 
available
Details
Nankang Winter Activa SV-3
Nankang
Nankang
Winter Activa SV-3
275/45 R21 110V XL, SUV

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  € 284.06
 
available
Details
Vredestein Wintrac Pro+
Vredestein
Vredestein
Wintrac Pro+
275/45 R21 110V XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  € 289.16
 
limited stock
Details
Goodyear UltraGrip Performance 3
Goodyear
Goodyear
UltraGrip Performance 3
275/45 R21 110V XL, EVR

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise 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
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven519442
30.05.2026fromFraser
Have tried lots of different snow tyres over years and put these on my 3 series touring to replace the Pirelli zero&rsquo;s. If anything I thought they ran quieter than the zero&rsquo;s and plenty of grip in both dry and wet conditions. Used the in snow as well and kept everything moving which is all you want from a snow tyre.
15.01.2026fromJames
As my Volvo is a rear wheel drive automatic I always use winter tyres. Previously had Goodyear ultra grip 9 and still have them on the front. New Goodyear ultra grip 3 on rear. We&#39;re great in the recent snow, where front wheel drives were getting stuck, no doubt on summer tyres.
11.01.2025fromAndy Duff
An extremely sure-footed winter tyre that blurs the transition from my summer to winter wheels. As good as it gets.
(3)

Reifentest.com

just  € 289.89
 
limited stock
Details
Nokian Snowproof 2 SUV
Nokian
Nokian
Snowproof 2 SUV
275/45 R21 110V XL Aramid Sidewalls

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 73dB
just  € 290.74
 
limited stock
Details
Hankook Winter i*cept evo3 X W330A
Hankook
Hankook
Winter i*cept evo3 X W330A
275/45 R21 110V XL 4PR SBL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 73dB
just  € 290.79
 
available
Details
Dunlop Winter Sport 5
Dunlop
Dunlop
Winter Sport 5
275/45 R21 110V XL, SUV BLK

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise 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.

(11)
Average based on 11 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 driven6591200
23.03.2026fromCharles Heard
A sure grip in all weather / road conditions
30.04.2021fromPaul
Just avoid, unless you live in Finland or something. Driving in WET and Dry, just terrible grip and I have a 4x4 Subaru with LSD. It&#39;s shocking really. Unless you drive really slow, it&#39;s OK then, but come roundabout they just don&#39;t grip doesn&#39;t matter wet or dry. Good in snow, but it should be at least good in wet as well and OK in dry, but It&#39;s crap in both wet and dry, so not good for me, will not buy again.
05.06.2019fromAsh
I didn&#39;t get these on until Feb/Mar when worst of the weather had passed. Driven on main roads &amp; motorways at temps between 3&deg;c and 16&deg;c in mixed weather without problems. Obviously they were less responsive at the higher temps but never felt dangerous. No sign of wear at all. Dry road grip when accelerating lost traction a bit too easily but cornering was predictable.
(11)

Reifentest.com

just  € 295.51
 
limited stock
Details
Bridgestone Blizzak DM V3
Bridgestone
Bridgestone
Blizzak DM V3
275/45 R21 110T XL, EVc Nordic Compound

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance EWet grip ENoise 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.

(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 driven35500
22.04.2021fromJon
Best winter tyres I&#39;ve had. Great grip in the snow and really good on cold roads and in the rain. Have performed well now that it&#39;s started warming up. Size (not listed on the Dropbox) 245/40/18
(1)

Reifentest.com

just  € 302.74
 
available
Details
Hankook Winter i*pike X W429A
Hankook
Hankook
Winter i*pike X W429A
275/45 R21 110T XL studded

Tyre type

 Winter tyres
limited stock
just  € 320.81
 
limited stock
Details
Pirelli Scorpion Winter 2
Pirelli
Pirelli
Scorpion Winter 2
275/45 R21 110V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 70dB
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
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven82599
15.06.2024fromSimon
Two months in the Alps didn&#39;t need to use snowchains. These tyres gripped well.
20.05.2024fromhoevenb
They are Pirelli tyres so should be good across the board. However the driving comfort in my electric car is not the same anymore with these tyres due to minor vibrations and no I don&rsquo;t have balancing issues so will switch back to Michelin when I need new tyres which won&rsquo;t be anytime soon.
(3)

Reifentest.com

just  € 338.27
 
available
Details
Goodyear UltraGrip Ice Gen 1
Goodyear
Goodyear
UltraGrip Ice Gen 1
275/45 R21 110T XL, SUV Nordic Compound

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip DNoise emissions 72dB
just  € 355.19
 
limited stock
Details
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Prices include VAT and delivery within Ireland.

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