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Home  >  225 / 40 18  >  Diamondback  >  Diamondback 225 / 40 18
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  Diamondback   225/40  18     

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Firestone Winterhawk 4
Firestone
Firestone
Winterhawk 4
225/40 R18 92V XL, EVc

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 71dB
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 driven870688
19.06.2025fromStuart Johnson
These are an excellent alternative to the Michelin Alpin A3 which I have historically run. They were cracking before wearing out. I needed something that would stick the power of the vehicle and be controllable. These fit the bill admirably.
(1)

Reifentest.com

just  € 112.46
 
available
Details
Radar Dimax R8+ RFT
Radar
Radar
Dimax R8+ RFT
225/40 R18 92Y XL, run-flat

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip ANoise emissions 72dB
just  € 112.55
 
limited stock
Details
Riken All Season
Riken
Riken
All Season
225/40 R18 92W XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip CNoise emissions 70dB
just  € 112.60
 
available
Details
Hankook iON evo R (IK31)
Hankook
Hankook
iON evo R (IK31)
225/40 R18 92Y XL 4PR *, EV SBL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 70dB
just  € 112.73
 
available
Details
Taurus All Season
Taurus
Taurus
All Season
225/40 R18 92Y XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip CNoise emissions 70dB
just  € 112.91
 
available
Details
Toyo Proxes Comfort
Toyo
Toyo
Proxes Comfort
225/40 R18 92W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet 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  N/A
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven138805
31.08.2023fromKalin
Bad grip, handling and braking on wet roads
(3)

Reifentest.com

just  € 112.99
 
available
Details
Avon WX7 Winter
Avon
Avon
WX7 Winter
225/40 R18 92V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 71dB
just  € 113.02
 
available
Details
Vredestein Quatrac Pro+
Vredestein
Vredestein
Quatrac Pro+
225/40 R18 92Y XL, EVc

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 72dB
just  € 113.34
 
available
Details
Semperit All Season-Grip
Semperit
Semperit
All Season-Grip
225/40 R18 92Y XL, EVc

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  € 113.50
 
limited stock
Details
Uniroyal AllSeasonExpert 2
Uniroyal
Uniroyal
AllSeasonExpert 2
225/40 R18 92V XL, EVc

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet 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.

(10)
Average based on 10 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 driven3181926
20.02.2026fromMr Neil Richard Parnham
These are a thoroughly dependable tyre and the Expert 2 (and the later Expert 3) are superb tyres. In addition to the stated vehicle I have a set on my wife&#39;s 2014 Audi A3 and our &#39;spare car&#39; a 2009 Fiat Panda 4x4. They are all on all year round and have acceptable wear even in hot summers
06.02.2026fromJim Hutchinson
What makes these tyres stand out is their performance on very wet roads or standing water.
27.02.2025fromMichael Payne
I am a careful driver. Mostly urban with some motorway driving. The tyres I chose are all season. Whilst I live in Edinburgh City, when snow falls I need to drive 800m and up 2 hills in order to get to a road that is kept clear and often there are cars and a bus strewn across the road. Amazing but true. These tyres have allowed me to bypass these cars and proceed to the swept roadway. 2 times this winter. Scarcely believable that people don&#39;t know how to drive in the snow. They are sure footed in frost too.
22.01.2025fromMr Neil Richard Parnham
We have owned this car for almost 11 years now and the last 9 years have been on firstly Uniroyal MS+77 205/55 R16 91H and then for the last 3 years on AllSeason Expert 2 which is a vastly improved tyre. The latter is so much quieter and returns improved fuel consumption and I believe better grip in wintry conditions
(10)

Reifentest.com

just  € 113.69
 
available
Details
Pirelli Cinturato All Season SF 3
Pirelli
Pirelli
Cinturato All Season SF 3
225/40 R18 92Y XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 71dB
just  € 113.73
 
available
Details
Bridgestone Turanza T005
Bridgestone
Bridgestone
Turanza T005
225/40 R18 92Y XL, EVc

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 72dB
just  € 113.77
 
limited stock
Details
Marshal MW51
Marshal
Marshal
MW51
225/40 R18 92V XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip CNoise emissions 72dB
just  € 113.77
 
limited stock
Details
Starmaxx Polarmaxx Sport
Starmaxx
Starmaxx
Polarmaxx Sport
225/40 R18 92V RF

Tyre type

 Winter tyres
available
just  € 113.77
 
available
Details
Continental ContiSportContact 5
Continental
Continental
ContiSportContact 5
225/40 R18 92Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip ANoise 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.

(10)
Average based on 10 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 driven6470208
07.01.2022fromJohn S.
Not a sport tyre. Very disappointment.
26.11.2020fromAlan Burton
Steady, now I&#39;m over 70, with the occasional speed burst for fun. Usually stick to speed limits now.
26.04.2020fromKeith Stagner
Quiet &amp; grips well. Gouges very easily on curbs when parking
27.08.2019fromMIKE
OE FITMENT NEVER HAD A PROBLEM AN EXCELLENT ALL ROUND PERFORMANCE TYRE.
(10)

Reifentest.com

just  € 113.96
 
available
Details
Kenda Wintergen 2 KR501
Kenda
Kenda
Wintergen 2 KR501
225/40 R18 92V RF

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 69dB
just  € 114.03
 
available
Details
New
Goodyear Vector All Season 4
Goodyear
Goodyear
Vector All Season 4
225/40 R18 92Y XL, EVR

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  € 114.29
 
available
Details
Hankook Ventus Prime 4 K135
Hankook
Hankook
Ventus Prime 4 K135
225/40 R18 92W XL 4PR SBL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 69dB
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  N/A
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven1106979
15.08.2025fromDonald
These tyres are good value and perform safely and well when used within legal parameters on UK roads. One slight negative is road surfaces can sometimes make tyre noise quite high but other than that I will definitely buy them again.
12.09.2024fromMichael
The tyres were 7/10 when I got them, the wet straight line grip is great the dry performance is above average. Quiet and comfortable tyres. The tyre wear is poor, I had new arms,tie rods, drop links and bushings as well as alignment done afterwards. The tyres showed excessive wear on the edge after only 8000 miles. I always check tyre pressure every week.
(2)

Reifentest.com

just  € 114.48
 
available
Details
Vredestein Quatrac Pro 2
Vredestein
Vredestein
Quatrac Pro 2
225/40 R18 92Y XL, EVc

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 68dB
just  € 114.60
 
available
Details
Winrun Winter-maX A1 WR22
Winrun
Winter-maX A1 WR22
225/40 R18 92V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip CNoise emissions 72dB
just  € 114.68
 
available
Details
Dunlop All Season 2
Dunlop
Dunlop
All Season 2
225/40 R18 92Y XL BLK

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  € 114.77
 
available
Details
Linglong Grip Master 4S
Linglong
Linglong
Grip Master 4S
225/40 R18 92W XL

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 69dB
just  € 114.78
 
limited stock
Details
Kleber Quadraxer 3
Kleber
Kleber
Quadraxer 3
225/40 R18 92Y XL

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 69dB
just  € 114.84
 
limited stock
Details
Dunlop Blue Response TG
Dunlop
Dunlop
Blue Response TG
225/40 R18 92W XL, EVs BLK

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 70dB
just  € 115.65
 
available
Details
Sava Eskimo HP2
Sava
Sava
Eskimo HP2
225/40 R18 92V XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet 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 driven2362150
(3)

Reifentest.com

just  € 115.69
 
limited stock
Details
Debica Frigo HP2
Debica
Debica
Frigo HP2
225/40 R18 92V XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet 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.

(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 driven1150256
11.04.2021fromJan Bain
Brilliant tyre. Sticks to the road in all conditions, effective handling and responsiveness on wet and dry roads. Brilliant grip on snow and ice.
04.04.2020fromEricG
Felt a little skittish when first fitted especially when applying the power through a roundabout. This was much more pronounced in the wet but never felt dangerous. Settled down after the first 500 miles and behaved slightly better. Felt surefooted and I generally never gave them too hard a time. Grips and brakes fine and more surefooted than summer tyres as the temperature drops. Would consider them again if / when buying to replace on this car or for another.
17.06.2019fromDave
Ive noticied the grip limit is found much quicker than on normal tyres , driving briskly in dry weather on country roads the grip level soon levels off quite a lot quicker than with normal tyres , on wet or icey/snowy ground its a different kettle of fish , inspire confidence driving . Tyre wear is negliable , although i was intending to swap these around during summer , i&#39;ll run these year round .There has been a marked decline in mpg figures , perhaps 3-4 , probably due to the softer compound and extra sips
(11)

Reifentest.com

just  € 115.69
 
limited stock
Details
Apollo Aspire XP Winter
Apollo
Apollo
Aspire XP Winter
225/40 R18 92V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 72dB
just  € 115.82
 
available
Details
Bridgestone Turanza All season 6
Bridgestone
Bridgestone
Turanza All season 6
225/40 R18 92Y XL (+), Enliten / EV

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise 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.

(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 driven412923
06.09.2025fromZoran
I have front set of 2 tires 1 year and around 20000km old, and rear set 6 months and around 10000km. Tyres are excellent for my car on dry and wet. There&#39;s not much snow in this part of England, but was some WET snow last winter and tyres were good on start and in curves but on braking just slide (wet snow i suppose). I have been on the road trip this summer 5000km+, and tyres aren&#39;t worn at all. Good grip in curves on motorway at high speed (up to 180 km/h) on dry and wet.
(4)

Reifentest.com

just  € 116.13
 
available
Details
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