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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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Bridgestone Turanza T005
Bridgestone
Bridgestone
Turanza T005
225/40 R18 92Y XL AO, EVc

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 72dB
just  € 122.79
 
limited stock
Details
Goodride IceMaster Spike Z-506
Goodride
Goodride
IceMaster Spike Z-506
225/40 R18 92T XL studded

Tyre type

 Winter tyres
available
just  € 122.90
 
available
Details
Toyo Observe Winter Sport 1
Toyo
Toyo
Observe Winter Sport 1
225/40 R18 92W

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 72dB
just  € 123.14
 
available
Details
Continental ContiSportContact 5
Continental
Continental
ContiSportContact 5
225/40 R18 92Y XL AO1

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise 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  € 123.54
 
available
Details
Sailun Atrezzo ZSR RFT
Sailun
Sailun
Atrezzo ZSR RFT
225/40 R18 92Y XL, run-flat

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 71dB
just  € 123.57
 
available
Details
BF Goodrich Advantage
BF Goodrich
BF Goodrich
Advantage
225/40 R18 92W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 70dB
just  € 123.86
 
limited stock
Details
Falken EUROWINTER HS02PRO
Falken
Falken
EUROWINTER HS02PRO
225/40 R18 92W XL, VCs BLK

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 72dB
just  € 124.03
 
available
Details
Bridgestone Potenza S005
Bridgestone
Bridgestone
Potenza S005
225/40 R18 92Y XL (+), EVc

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 72dB
just  € 124.05
 
available
Details
BF Goodrich Advantage All-Season
BF Goodrich
BF Goodrich
Advantage All-Season
225/40 R18 92W XL, EV Suitable

Tyre type

 All-season tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 69dB
just  € 124.11
 
limited stock
Details
Triangle Icelynx TI501
Triangle
Triangle
Icelynx TI501
225/40 R18 92T XL studded

Tyre type

 Winter tyres
available
just  € 124.36
 
available
Details
Platin RP 70 Winter
Platin
Platin
RP 70 Winter
225/40 R18 92V XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  € 124.43
 
limited stock
Details
Hankook Ventus evo K137
Hankook
Hankook
Ventus evo K137
225/40 R18 92Y XL 4PR (+) SBL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 69dB
just  € 125.09
 
available
Details
LASSA Driveways Sport+
LASSA
Driveways Sport+
225/40 R18 92Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 71dB
just  € 125.20
 
available
Details
BF Goodrich Advantage
BF Goodrich
BF Goodrich
Advantage
225/40 R18 92Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 70dB
just  € 125.32
 
limited stock
Details
Bridgestone Potenza Sport
Bridgestone
Bridgestone
Potenza Sport
225/40 R18 92Y XL (+), EVc

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 68dB
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.

(40)
Average based on 40 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 driven10160290
18.12.2025fromKeith
Unlike some who write stuff thinking they&#39;re lewis hamilton, im not, but im no miss daisy either. Ive driven it pretty hard at times and whatever has been thrown at these tyres, wet or dry, they have stood up to it. Not a hint of losing it. Exactly what you expect, from mid range premium make tyres.
30.08.2024fromClive Smith
These are the B-Silent Model and they were 235/55 R19 105Y but this system will not let me specify 55 height. These tyres are absolutely brilliant! I fitted them on the rear and they stopped the road noise from the rear completely. I just wish I had not fitted something different to the front previously, as soon as the fronts wear out I will change to these. I have had no problem with grip, despite racing others around roundabouts.
28.10.2021fromFluster
Excellent in the wet, no hydroplaning or wheeljerk when driving into puddles at speed. This is my second set of this tyre for this reason.
13.10.2021fromAgop Beyleryan
The tyre is with overall good performance. On wet is losing grip in the corners, however braking in wet conditions is solid
(40)

Reifentest.com

just  € 125.57
 
available
Details
Vredestein Quatrac Pro+
Vredestein
Vredestein
Quatrac Pro+
225/40 R18 92V XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 72dB
just  € 125.81
 
available
Details
Nexen Winguard Sport 2
Nexen
Nexen
Winguard Sport 2
225/40 R18 92V XL 4PR

Tyre type

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

(13)
Average based on 13 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 driven3990103
17.03.2024fromMr. Terry Brown
When I purchased my vehicle (preowned) it came with Nexen tyres on all four corners. I had to change the two front tyres after a few years and choose Goodyears. Last year I had to change the front tyres again because the Goodyears had worn considerably, whilst still having the same Nexens on the rear of the car since I purchased it. Hence stick with the Nexens. When I need to change the rear tyres I will definitely choose Nexens.
01.06.2023fromRichard Chappell
I was not sure about purchasing these tyres at 1st, but I&#39;m pleased I gave them a go as they have performed brilliantly, Even tyre wear all the way around, kept good shape and performed very well.
10.05.2023fromAndy
Low noise (quieter than the continentals the car had as standard). Good grip all weather tyre. Had several Winguard sports before. Recommended.
19.04.2021fromAlan Bunting
Excellent tyres highly recommend
(13)

Reifentest.com

just  € 126.05
 
limited stock
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  € 126.06
 
available
Details
New
Continental AllSeasonContact 2
Continental
Continental
AllSeasonContact 2
225/40 R18 92V XL, EVc

Tyre type

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

(9)
Average based on 9 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 driven1592322
05.02.2025fromDean
I&#39;ve done around 8500 miles so far in mostly poor weather , very good grip in all winter conditions and mild conditions. Good all rounder.
28.05.2024fromMarcis
Good grip on wet and dry roads. Reasonable grip on snow and icy roads. Noisy on dry roads. Fuel consumption has increased. All in all decent tyres.
07.04.2024fromHarry
Incredibly capable tyre for all conditions, but my experience on the roads in West Yorkshire will probably dictate that I don&#39;t purchase these tyres again as they are too soft on the sidewall, they do need some sort of protective band. The roads a terrible around Haworth for potholes, and in this case I could not dodge one and it has ripped the sidewall and damaged the rim, rendering the tyre scrap.
(9)

Reifentest.com

just  € 126.16
 
available
Details
Cooper Discoverer All Season
Cooper
Cooper
Discoverer All Season
225/40 R18 92Y XL

Tyre type

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

(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 driven151404
11.10.2021fromDave johnson
Great grip on dry, grass, mud and in the wet. Expected them to be noisier at higher speeds but the noise is quite acceptable.
(2)

Reifentest.com

just  € 126.47
 
available
Details
New
Continental AllSeasonContact 2
Continental
Continental
AllSeasonContact 2
225/40 R18 92Y XL, EVc

Tyre type

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

(9)
Average based on 9 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 driven1592322
05.02.2025fromDean
I&#39;ve done around 8500 miles so far in mostly poor weather , very good grip in all winter conditions and mild conditions. Good all rounder.
28.05.2024fromMarcis
Good grip on wet and dry roads. Reasonable grip on snow and icy roads. Noisy on dry roads. Fuel consumption has increased. All in all decent tyres.
07.04.2024fromHarry
Incredibly capable tyre for all conditions, but my experience on the roads in West Yorkshire will probably dictate that I don&#39;t purchase these tyres again as they are too soft on the sidewall, they do need some sort of protective band. The roads a terrible around Haworth for potholes, and in this case I could not dodge one and it has ripped the sidewall and damaged the rim, rendering the tyre scrap.
(9)

Reifentest.com

just  € 126.62
 
available
Details
Rovelo RWS 677
Rovelo
Rovelo
RWS 677
225/40 R18 92H XL studdable

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip DNoise emissions 72dB
just  € 126.76
 
available
Details
BF Goodrich g-Force Winter 2
BF Goodrich
BF Goodrich
g-Force Winter 2
225/40 R18 92V XL, EV Suitable

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 69dB
just  € 127.05
 
available
Details
Bridgestone Turanza T001 RFT
Bridgestone
Bridgestone
Turanza T001 RFT
225/40 R18 92W XL MOExtended, EVc, run-flat

Tyre type

 Summer tyres
limited stock
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.

(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 driven103002
27.08.2022fromTessa Bright
Have use these tyres from 15k to 33k km (car had they when I bought it. By the time I got them, they were about one third used. Dry grip fine, wet grip for cornering, braking and traction not good at all. Because of the hard rubber though, I think they will last till at least 40k km. Wear is even, balance is maintained and tyres are still quiet at 33k km. My main issue is horrible bump thump and shock adsorption of sharper road imperfections, like speed control strips and potholes where the tyres feel like they are made up of almost solid rubber. Had resorted to running them 10 percent under recommended pressure just to live with them in this respect. Recently rode in a same car year/ model as mine running non-RFT tyres and the shock absorption capabilities are as different as night and day. Car feels like it actually has air in the tyres, not solid rubber! Will be fitting non-RFT tyres to my car soon.
19.03.2021frombayousam
Tyre squeal are my middle names
(2)

Reifentest.com

just  € 127.09
 
limited stock
Details
Vredestein Quatrac Pro 2
Vredestein
Vredestein
Quatrac Pro 2
225/40 R18 92V XL, EVc

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 68dB
just  € 127.39
 
available
Details
Dynamo Snow-H MWH03
Dynamo
Snow-H MWH03
225/40 R18 92H XL studded

Tyre type

 Winter tyres
available
just  € 127.41
 
available
Details
Fortune FSR-701
Fortune
FSR-701
225/40 R18 92Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  € 127.64
 
limited stock
Details
Dunlop Sport Maxx RT
Dunlop
Dunlop
Sport Maxx RT
225/40 R18 92Y XL AO1 BLK

Tyre type

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

(69)
Average based on 69 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 driven20596980
17.11.2015fromviktor vari
excellent tyres for very reasonable price. definitely would buy them again
10.09.2015fromGES
Supposed to give excellent fuel efficiency. Getting poorer MPG that I did from my Continental Sports! Difficult to say but wear does not look too good on front, doubt I'll get another 12k out of them!
09.09.2015fromJoseph Kinney
Starting to lose some of that high end grip when pushing hard but a very good tyre, great performance and very predictable.
02.07.2015fromSaulius
Very good tyre, but wears very quickly. But again, if you want solid grip in wet, the compound has to be soft and it means it will wear quicker than others. Had p-zero previously, was a bit noisy, dunlop makes much less noise.
(69)

Reifentest.com

just  € 127.92
 
available
Details
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