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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  Sonar  225/40  18   

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Comforser PureSpeed
Comforser
PureSpeed
225/40 ZR18 92Y XL

Season

 All-season tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 72 dB
just  67.78 £
In Stock
Details
Free shipping **
Crosswind Sport Peak
Crosswind
Sport Peak
225/40 R18 92Y XL, with kerbing rib

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip A Noise emissions 72 dB
just  67.98 £
In Stock
Details
Free shipping **
Fronway Icemaster I
Fronway
Icemaster I
225/40 R18 92H XL

Season

 Winter tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip D Noise emissions 68 dB
just  68.10 £
In Stock
Details
Free shipping **
Laufenn S Fit EQ+ LK01
Laufenn
S Fit EQ+ LK01
225/40 ZR18 92Y XL 4PR, with rim protection (MFS) SBL

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  68.13 £
In Stock
Details
Free shipping **
Laufenn S Fit 2 LK12
Laufenn
S Fit 2 LK12
225/40 ZR18 92Y XL 4PR, with rim protection (MFS) SBL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip A Noise emissions 71 dB
just  68.13 £
In Stock
Details
Free shipping **
Goodride All Season Elite Z-401
Goodride
Goodride
All Season Elite Z-401
225/40 R18 92W XL, with rim protection (MFS)

Season

 All-season tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip C Noise emissions 72 dB
just  68.24 £
In Stock
Details
Free shipping **
Maxtrek MAXIMUS M2
Maxtrek
Maxtrek
MAXIMUS M2
225/40 R18 92W XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip B Noise emissions 72 dB
just  68.29 £
In Stock
Details
Free shipping **
Arisun All Season Elite Z-401
Arisun
All Season Elite Z-401
225/40 R18 92W XL

Season

 All-season tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip C Noise emissions 72 dB
just  68.32 £
In Stock
Details
Free shipping **
Delinte DS2
Delinte
Delinte
DS2
225/40 R18 92W XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
just  68.33 £
In Stock
Details
Free shipping **
Lanvigator Excite
Lanvigator
Excite
225/40 ZR18 92Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 71 dB
just  68.49 £
In Stock
Details
Free shipping **
Debica Presto UHP 2
Debica
Debica
Presto UHP 2
225/40 R18 92Y XL, with rim protection (MFS)

Season

 Summer tyres
2 - 4 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C 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.

(25)
Average based on 25 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 3190272
03.03.2025 from David Dyson
Mature elderly, x competition experience so not a plodder by any means, retired now so on a budget, these tyres meet that, but excellent performance for the price, also its a must for me that al my tyres are of the same make and compound, went a profile section up from manufactures recommendation, very noticeable increase in grip and handling, only slight negative, possibly due to the excellent torque of my engine ( Turbo Diesel ) and my driving style rather than the tyres, but grip on initial acceleration from stationary even in the dry ( obviously worse in the wet ) definitely not the best, so suspect compound compromise, but nothing serious.
27.05.2021 from fred heath
I like quiet and comfort when driving. These tyres provide that experience as well as a noticeable increase in economy. Being retired I do not have to go out in all weathers but when caught out by the weather these tyres perform well although snow, as might be expected, is a bit of a trial. Despite this I would look for these tires again as they suit my driving style and needs.
13.09.2020 from Marek
Generally... There are no surprises with these tires so far, they work great on wet surfaces, they are quiet, it&#39;s ok. I&#39;m waiting for winter and the first snow.
02.06.2020 from Paul W
Having fitted these tyres all round, they have transformed the car. I used popular well known Japanese brands previously which I had never truly been happy with. I fitted the new tyres and instantly the car felt better, more responsive and considerably smoother. The noise from the tyres was incredibly quiet and I was surprised at how much noise the previous tyres had actually generated. I have also noticed how much better the tyre grips under acceleration and the steering was sharper and more responsive to the touch. There also feels less rolling resistance on the road. I have noticed the tyre pattern looks far better for displacing water and whilst only currently driving in slightly wet conditions, again the feel and response instill a feeling of confidence and safety with good firm grip. Overall I&#39;m greatly impressed with the tyre and would have no hesitation in recommending for performance, grip and safety.
(25)

Reifentest.com

just  68.50 £
limited stock
Details
Free shipping **
Aptany RA342
Aptany
RA342
225/40 ZR18 92W XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance B Wet grip C Noise emissions 72 dB
just  68.61 £
In Stock
Details
Free shipping **
Profil Pro Snow 790
Profil
Pro Snow 790
225/40 R18 92H XL runderneuert

Season

 Winter tyres
2 - 5 working days delivery time
In Stock
just  67.97 £
In Stock
Details
Free shipping **
Landsail RapidDragon
Landsail
Landsail
RapidDragon
225/40 R18 92W XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance B Wet grip B Noise emissions 72 dB
just  68.68 £
In Stock
Details
Free shipping **
Atlas Green 3 4S
Atlas
Green 3 4S
225/40 R18 92W XL

Season

 All-season tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 68 dB
just  68.68 £
In Stock
Details
Free shipping **
Fortuna Eco Plus UHP
Fortuna
Fortuna
Eco Plus UHP
225/40 R18 92Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 70 dB
just  68.73 £
In Stock
Details
Free shipping **
Superia EcoBlue HP
Superia
EcoBlue HP
225/40 R18 92Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 70 dB
just  68.73 £
In Stock
Details
Free shipping **
Atlas Sport Green 2
Atlas
Sport Green 2
225/40 R18 92Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 70 dB
just  68.73 £
In Stock
Details
Free shipping **
Linglong GREEN-Max All Season
Linglong
Linglong
GREEN-Max All Season
225/40 R18 92V XL, with kerbing rib

Season

 All-season tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip D 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.

(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 driven 692838
07.05.2026 from George
Excellent budget choice, very good for all round safe driving at any speed. No issues at all on any road conditions throughout the year. Including on snow, ice or mud. Half the price of cross climates with 90% of their performance within all road conditions.
28.07.2019 from Rob
Being a driving instructor, safety is paramount and have extremely satisfied with these tyres. In snow also.
(3)

Reifentest.com

just  68.75 £
In Stock
Details
Free shipping **
Radar Dimax R8 RFT
Radar
Radar
Dimax R8 RFT
225/40 ZR18 88W run-flat

Season

 Summer tyres
1 - 2 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance D Wet grip B Noise emissions 71 dB
just  68.80 £
limited stock
Details
Free shipping **
Zeetex WH1000
Zeetex
Zeetex
WH1000
225/40 R18 92V XL

Season

 Winter tyres
2 - 4 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 71 dB
just  68.80 £
limited stock
Details
Free shipping **
Fortune FSR401
Fortune
FSR401
225/40 R18 92Y XL

Season

 All-season tyres
2 - 5 working days delivery time
In Stock
just  68.86 £
In Stock
Details
Free shipping **
Ovation W-586
Ovation
Ovation
W-586
225/40 R18 92H

Season

 Winter tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance E Wet grip D Noise emissions 72 dB
just  68.91 £
In Stock
Details
Free shipping **
Crosswind Grip Peak 4S
Crosswind
Grip Peak 4S
225/40 R18 92W XL

Season

 All-season tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 69 dB
just  68.98 £
In Stock
Details
Free shipping **
Windforce Catchfors A/S II
Windforce
Catchfors A/S II
225/40 ZR18 92W XL BLK

Season

 All-season tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 71 dB
just  69.25 £
In Stock
Details
Free shipping **
Wanli SC501
Wanli
Wanli
SC501
225/40 ZR18 92W XL

Season

 All-season tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 70 dB
just  69.30 £
In Stock
Details
Free shipping **
Victory Road Pro
Victory
Road Pro
225/40 R18 92Y XL

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  69.35 £
In Stock
Details
Free shipping **
Zeetex ZT8000 4S
Zeetex
Zeetex
ZT8000 4S
225/40 R18 92W XL

Season

 All-season tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip B Noise emissions 72 dB
just  69.36 £
In Stock
Details
Free shipping **
There are 28 of 834 tyres displayed
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