We use cookies to personalize content and ads, provide social media features, and analyze traffic. In addition, we provide social media, advertising, and analytics partners with information about how you use our website. If you continue to use our website, you agree to our cookies.
Home  >  Summer tyres  >  255 / 45 20  >  Diamondback Tyres  >  Diamondback 255 / 45 20
Summer tyres - optimal grip guaranteed!
On dry roads or mild weather, your tyres have to face some increased demands and must always meet safety standards. Compared to winter tyres, the rubber mixture of the summer tyres is harder, even in high temperatures. Default rolling resistance and wear are smaller, resulting in a greater lifespan, comfort and increased stability. Choose now from our offer your summer tyres at an affordable price. Our portfolio includes a wide range of tyre brands
 
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:
 
/
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   255/45  20    Summer tyres 

search by size: 0 Results

Sort by:  

Details

Add product to compare

Prices include VAT and delivery within Ireland

Show all the tyres in the selected size
Chengshan CSC-303
Chengshan
Chengshan
CSC-303
255/45 R20 105Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 73dB
just  139.52 £
limited stock
Details
Delinte DS2
Delinte
Delinte
DS2
255/45 R20 105W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 73dB
just  139.81 £
limited stock
Details
Kapsen RS26
Kapsen
RS26
255/45 R20 105W

Tyre type

 Summer tyres
available
just  143.82 £
available
Details
Leao N-F Acro
Leao
Leao
N-F Acro
255/45 R20 105W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 73dB
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 driven27042
06.12.2023fromHolmesy
So far so good, no snow to test so far, but in wet good... And in dry good,... Not sure of the wear yet but I've noticed fuel consumption is very economical and the tyres are very very quiet, not as loud as the old rumbling Bridgestones, £ 50 x 4 tyres kwik fit 👌👍
(1)

Reifentest.com

just  147.36 £
available
Details
Massimo Velocita U1
Massimo
Velocita U1
255/45 R20 105W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  149.12 £
limited stock
Details
Unigrip Lateral Force Sport
Unigrip
Unigrip
Lateral Force Sport
255/45 R20 105Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 73dB
just  149.63 £
available
Details
Leao Nova Force C/S
Leao
Leao
Nova Force C/S
255/45 R20 105Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 73dB
just  150.40 £
available
Details
Taurus Summer3 SUV
Taurus
Taurus
Summer3 SUV
255/45 R20 105Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 73dB
just  152.63 £
available
Details
Arivo Ultra ARZ-5
Arivo
Ultra ARZ-5
255/45 R20 101V XL, run-flat

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 72dB
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  N/A
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven18000
(1)

Reifentest.com

just  152.68 £
limited stock
Details
Taurus SUV 701
Taurus
Taurus
SUV 701
255/45 R20 101W

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip CNoise emissions 72dB
just  153.30 £
available
Details
Maxxis Victra Sport 6 SUV
Maxxis
Maxxis
Victra Sport 6 SUV
255/45 R20 105Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 72dB
just  154.99 £
available
Details
General Grabber GT Plus
General
General
Grabber GT Plus
255/45 R20 105Y XL, EVc

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 73dB
just  156.45 £
limited stock
Details
Sentury Qirin 990 SUV
Sentury
Qirin 990 SUV
255/45 R20 101W

Tyre type

 Summer tyres
available
just  156.45 £
available
Details
Kormoran Summer 3 SUV
Kormoran
Kormoran
Summer 3 SUV
255/45 R20 105Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 73dB
just  156.62 £
limited stock
Details
Riken Summer3 SUV
Riken
Riken
Summer3 SUV
255/45 R20 105Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 73dB
just  157.35 £
available
Details
Falken AZENIS FK520
Falken
Falken
AZENIS FK520
255/45 R20 105Y XL BLK

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 70dB
just  162.64 £
available
Details
Fulda EcoControl SUV
Fulda
Fulda
EcoControl SUV
255/45 R20 105W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  163.30 £
limited stock
Details
Sunfull HP881
Sunfull
HP881
255/45 R20 105V XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip DNoise emissions 73dB
just  164.20 £
limited stock
Details
Sumitomo BC100
Sumitomo
BC100
255/45 R20 105W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  165.52 £
limited stock
Details
Tigar Summer 3 SUV
Tigar
Tigar
Summer 3 SUV
255/45 R20 105Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 73dB
just  170.26 £
limited stock
Details
Riken 701
Riken
Riken
701
255/45 R20 101W

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip CNoise emissions 72dB
just  170.57 £
limited stock
Details
Kumho Crugen HP71
Kumho
Kumho
Crugen HP71
255/45 R20 101H 4PR

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  171.20 £
limited stock
Details
Firestone Roadhawk 2
Firestone
Firestone
Roadhawk 2
255/45 R20 105W XL, Enliten / EV

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 71dB
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  N/A
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven250294
29.07.2025fromTom
These tyres in my rear wheel drive BMW are grippy in the dry, but leave me yearning for more in the wet. The car will "step-out" if I punch it whilst the road is even midly damp. My tracking was done at the same time as having these fitted so that is not a factor. The car will also step out if the road is more greasy looking.
(1)

Reifentest.com

just  182.54 £
limited stock
Details
Prinx Xnex Sport EV
Prinx
Xnex Sport EV
255/45 R20 105W XL, EV

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 73dB
just  182.71 £
available
Details
Kleber Dynaxer HP 5 SUV
Kleber
Kleber
Dynaxer HP 5 SUV
255/45 R20 101W

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 72dB
just  183.75 £
available
Details
LASSA Competus H/P 3
LASSA
Competus H/P 3
255/45 R20 105W XL, EV Ready

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 71dB
just  186.60 £
limited stock
Details
New
Goodyear Eagle F1 Asymmetric 6
Goodyear
Goodyear
Eagle F1 Asymmetric 6
255/45 R20 105T XL, EVR

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 70dB
Client reviews rating:
Client reviews rating

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

(57)
Average based on 57 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 driven8343440
07.10.2023fromSimon Hall
Amazing tyres, grip is excellent, comfort and noise are excellent. the only thing i can fault is that the wear isn't anything special. Down to 4mm after 6000 miles. My tyre size is 245/35R18 but tyretest will not let me add the correct size above.
10.08.2023fromDanB
Excellent tyres chosen via the reviews by Jon @ tyrereviews.co.uk - they faired very well against the likes of the Michelin PS5s and at the time of buying (Feb2023) the Goodyears were £250 cheaper than the PS5s; but more or less neck & neck with them in the tyre review! That swung the decision for me, more so with the money saving!
23.09.2022fromJames g
Fuel consumption high
07.02.2022fromSpiros
Car Driven : BMW 425D 225Hp . Quite quietly from the start until the first 10,000 km they kept a relatively low noise level until the end of their lives. Relatively comfortable especially considering that is a runflat tire. The tire tread still retains its original groove and design but has significant wear points on both edge and there are some small tire detachments. In the few rains we have in Greece it never had a hadling problem or breaking and did not create any feeling of insecurity. in short it is a good quiet tire ROF tire, comfortable and efficient in fast driving.
(57)

Reifentest.com

just  188.59 £
limited stock
Details
Pirelli Scorpion Verde
Pirelli
Pirelli
Scorpion Verde
255/45 R20 101W MO

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 71dB
Client reviews rating:
Client reviews rating

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

(6)
Average based on 6 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 driven3404330
08.12.2019fromJim
Possibly the worst tyre I've ever bought have 8000kilometres done on tyres and already need replacing not what you would expect from a pirelli tyre
02.01.2015fromGraeme
Fantastic tyre, really gives you confidence in the wet
16.11.2014fromOwen
Excellent grip, much better in the wet than other tyres I have used on the same vehicle. Fuel consumption seems to have improved slightly and the tyres are fairly quiet. I think the ride might be a little harsher than it was.
19.06.2014fromRoger Tilley
Excellent product at very competitive price. Would definitely use My Tyres again.
(6)

Reifentest.com

just  189.94 £
available
Details
There are 28 of 131 tyres displayed
‹
›
Items per page

Newsletter

Receive news and information on tyres, offers and competitions

Partner garages in your area.

Choose one of our partner garages in your area

Find service Partners:

Contact us under 03308186193

Autopink the best tire-buying service ever

Do you need new tyres quickly and at the best price? AUTOPINK finds your new tyres in less than a minute. We will deliver your choice as fast as possible. A service for you at no extra cost.


Free shipping
Over 2.000 fitting station partners
30 days return policy
Payment Methods

© 2026 Autopink.com

AT | BE | CH | DE | DK | ES | FI | FR | IE | IT | NL | NO | PL | PT | SE | UK | SK | RO | CZ | HU | EE | SI

scroll_top