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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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Yokohama BluEarth-4S AW21
Yokohama
Yokohama
BluEarth-4S AW21
225/40 R18 92W XL BluEarth

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip B Noise emissions 72 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 2121612
15.04.2024 from Phil Gillender
Had little snow this year but felt very stable good in wet.No problem s so far
19.02.2021 from Rick von Horvath
Such an amazing tyre from Yokohama. Equally as good, if not better, than both Uniroyal and Yokohama winter tyres that I have used in the past. So much quieter too than winter tyres. Top rated traction on both snow and ice. I have passed taxi drivers and over enthusiastic prestige German car drivers trying to go up steep snow covered hills as the Yokohama BluEarth-4S AW21 just kept on going with confidence and tenacious grip. I would swear blind that my humble Skoda Octavia Combi was a 4 x 4 rather than FWD! I understand that this tyre is TUV Sud approved and I can totally as to understand why. Such good valve tyres so go and purchase some, you will not regret it!
23.01.2021 from Viorel
Surprisingly good grip on wet road and stability. Compares very well with my previous premium brand, season dedicated. Price considered, very happy, would buy again.
(4)

Reifentest.com

just  72.04 £
available
Details
Massimo Ottima Plus
Massimo
Ottima Plus
225/40 R18 92W

Tyre type

 Summer tyres
available
just  72.04 £
available
Details
Maxxis Premitra 6
Maxxis
Maxxis
Premitra 6
225/40 R18 92Y XL, with rim protectionleiste (FSL)

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance B Wet grip A Noise emissions 72 dB
just  72.05 £
available
Details
Torque TQ025
Torque
Torque
TQ025
225/40 R18 92V XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance E Wet grip C Noise emissions 72 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 285960
31.07.2019 from Michelle Blake
Excellent service quality value from start
(1)

Reifentest.com

just  72.10 £
available
Details
Berlin Tires Summer HP 1
Berlin Tires
Summer HP 1
225/40 R18 92W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip C Noise emissions 72 dB
just  72.15 £
limited stock
Details
Minerva Frostrack UHP
Minerva
Minerva
Frostrack UHP
225/40 R18 92V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip C Noise emissions 72 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  72.18 £
available
Details
Falken AZENIS FK520
Falken
Falken
AZENIS FK520
225/40 R18 92Y XL, with rim protection (MFS) NBLK, VCs

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip A Noise emissions 70 dB
just  72.33 £
limited stock
Details
Westlake ZuperAce Z-007
Westlake
Westlake
ZuperAce Z-007
225/40 R18 92Y XL

Tyre type

 Summer tyres
limited stock
just  72.63 £
limited stock
Details
Imperial All Season Driver
Imperial
Imperial
All Season Driver
225/40 R18 92Y XL

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B 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.

(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 788154
29.05.2022 from Jamie Hewison
Bought these tyres as a bit of an emergency stop gap after somebody had slashed my tyres in a city centre car park, they were only supposed to be on for a few weeks until pay day and I could afford something better, however they’ve now been on for 6 months and have been used in all weathers, including a couple of muddy tracks. They perform really quite well, grip is very good in the dry, only a slight decrease on wet roads and better than expected in the snow. Although they’re not a mud tyre, they still handled the muddy farm tracks with ease. Fuel economy seems pretty much unchanged, road noise is slightly higher than a premium tyre but not so much that it becomes intrusive. Tyre wear is on par with others, I’ve done 10,000 miles so far and judging by the remaining tread, If I run them all the way down to 1.6mm, I think I’ll be on course for a 20,000 mile lifespan.
(2)

Reifentest.com

just  72.74 £
limited stock
Details
Rovelo Snow Sprint
Rovelo
Rovelo
Snow Sprint
225/40 R18 92V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance E Wet grip C Noise emissions 72 dB
just  72.83 £
available
Details
Aptany RW645
Aptany
RW645
225/40 R18 92V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip B Noise emissions 70 dB
just  72.93 £
available
Details
Profil Aqua Race
Profil
Aqua Race
225/40 R18 88W runderneuert

Tyre type

 Summer tyres
limited stock
just  72.99 £
limited stock
Details
Profil Tornado
Profil
Tornado
225/40 R18 88W runderneuert

Tyre type

 Summer tyres
limited stock
just  72.99 £
limited stock
Details
Wanli SW612
Wanli
Wanli
SW612
225/40 R18 92V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip B Noise emissions 70 dB
just  72.99 £
available
Details
Mirage MR-762 AS
Mirage
MR-762 AS
225/40 R18 92V XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip C Noise emissions 72 dB
just  73.10 £
available
Details
Double Star DSU02
Double Star
Double Star
DSU02
225/40 R18 92Y XL

Tyre type

 Summer tyres
available
just  73.61 £
available
Details
Zeetex HP6000 Eco
Zeetex
Zeetex
HP6000 Eco
225/40 R18 92Y

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 71 dB
just  73.67 £
available
Details
Chengshan CSC-401
Chengshan
Chengshan
CSC-401
225/40 R18 92W XL

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 72 dB
just  73.76 £
limited stock
Details
Linglong Sport Master 4S
Linglong
Linglong
Sport Master 4S
225/40 R18 92W XL, with rim protection (MFS)

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 69 dB
just  74.03 £
available
Details
Imperial Snow Dragon UHP
Imperial
Imperial
Snow Dragon UHP
225/40 R18 92V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip C Noise emissions 72 dB
just  74.11 £
available
Details
Gislaved Euro*Frost 6
Gislaved
Gislaved
Euro*Frost 6
225/40 R18 92V XL EVc, with kerbing rib

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip C Noise emissions 72 dB
just  74.23 £
limited stock
Details
Goodtrip BlueGuard Snow
Goodtrip
BlueGuard Snow
225/40 R18 92V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip B Noise emissions 72 dB
just  74.33 £
available
Details
Profil Pro Snow 790
Profil
Pro Snow 790
225/40 R18 92H XL runderneuert

Tyre type

 Winter tyres
available
just  74.37 £
available
Details
Arivo Winmaster ARW 2
Arivo
Winmaster ARW 2
225/40 R18 92H

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C Wet grip C Noise emissions 70 dB
just  74.38 £
limited stock
Details
Fulda SportControl 2
Fulda
Fulda
SportControl 2
225/40 R18 92Y XL, with rim protection (MFS)

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance C 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.

(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 driven 3546665
07.01.2023 from William
I originally picked Fulda Sport Control 2 because they had the lowest noise rating of any tyre I could find in comparisons. Some other tyres have a low noise rating but quieter tyres are hard to find. Fulda are a German manufactured brand which puts them in a different league from the tyres made in 3rd world countries in terms of quality but they're also middle priced so you're getting a good tyre for a good price. I've now had these all round on 3 cars and driven them over many years and 10s of thousands of miles and unless something better comes along I'll be sticking with them for the moment. Aside from being quiet I can't fault them on grip and wear although if they were less grippy or faster wearing I'd be prepared to accept that in return for the quieter running. A lot of modern cars have wheels which are far too large and the Fulda Sport Control 2 helps to mitigate the noise created by wide low profile tyres making the car much nicer to drive.
17.01.2020 from Wasim
It's a fine set of tyres. I don't push the car so can't really comment on its braking abilities and I haven't taken enough statistics to confirm any fuel efficiency differences from the manufacturer-provided tyres. However I can confirm that the moment I drove away from the garage with the new tyres, it was noticeably quieter, enough that some in my family noticed. Since buying the tyres the main roads to work have been torn up and the current temporary roads are really quite bad and will probably tear up the tyres far faster than normal roads would... who knows how bad the noise in the car would have been with the old ones.
04.12.2019 from Barry
A great performing tyre for the cost. Only area of concern is on damp roads and losing grip under hard acceleration (front wheel drive car, with lots of diesel torque). Very quiet compared to my last factory fitted Michelin.
25.09.2019 from David
Excellent tyre. Solid performance in wet and dry at high speed
(10)

Reifentest.com

just  74.39 £
limited stock
Details
Trazano Z401
Trazano
Trazano
Z401
225/40 R18 92W XL

Tyre type

 All-season tyres
available
just  74.45 £
available
Details
RoadX Frost Tempo
RoadX
Frost Tempo
225/40 R18 92V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip B Noise emissions 72 dB
just  74.72 £
available
Details
Goodride SW608
Goodride
Goodride
SW608
225/40 R18 92V XL, with rim protection (MFS)

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance D Wet grip C Noise emissions 72 dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. Tyretest.com offers over 430 000 tests firsthand - from consumers for consumers.

(112)
Average based on 112 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 60086856
29.04.2024 from Peter
This was the second time I have purchased this set of winter tyres. Winter 2023 I drove across Czech republic where a heavy snowfall suprised us on the way. With those tyres absolutely no problem, felt safe.
26.04.2024 from Hamish Reid
Able drive through dry snow >15cm and on incline. Had one drive on wet snow that was up to 15cm in depth which only had minor slipping.
09.05.2022 from Eamon Quirke
All good 👍
12.01.2022 from Lee cook
Tyres have performed well so far it's still early January so haven't been able to test their performance in the snow yet but they feel reasuring in the wet the car needed tyres when we brought it so a wear comparison will be difficult but I expect then to wear quicker than standard tyres as the compound is bound to be softer on a winter tyre
(112)

Reifentest.com

just  74.76 £
available
Details
There are 28 of 637 tyres displayed
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