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Home  >  Summer tyres  >  255 / 40 21  >  Triangle Tyres  >  Triangle 255 / 40 21
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:
 
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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  Triangle   255/40  21    Summer tyres 

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Prices include VAT and delivery within Ireland

Triangle Sportex TH201
Triangle
Triangle
Sportex TH201
255/40 R21 102Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise 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.

(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 driven239225
03.05.2023fromMr Shane Harris
I had always purchased branded tyres for my cars, particlulary cars that are quick/nippy. I was recommended these tyres by fellow users on Audi forums etc and I must say that these have been brilliant. Road noise is quite, grip is really good both wet and dry and they are wearing pretty well. For a fraction of the cost of premium tyres that were supplied i will defiantley be buying these again in the future.
21.03.2023fromOskars
Bad handling on wet roads
(3)

Reifentest.com

just  140.14 £
limited stock
Details
Show all the tyres in the selected size
Pace ALVENTI
Pace
Pace
ALVENTI
255/40 R21 102Y

Tyre type

 Summer tyres
available
just  99.59 £
available
Details
Radar Dimax R8+
Radar
Radar
Dimax R8+
255/40 R21 102Y XL, EVc

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 73dB
just  99.84 £
limited stock
Details
Accelera Iota ST-68
Accelera
Accelera
Iota ST-68
255/40 R21 102W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 68dB
just  106.51 £
limited stock
Details
Imperial Ecosport SUV
Imperial
Imperial
Ecosport SUV
255/40 R21 102Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  107.10 £
available
Details
Minerva MV714
Minerva
Minerva
MV714
255/40 R21 102Y XL

Tyre type

 Summer tyres
limited stock
just  107.78 £
limited stock
Details
RoadX SU01
RoadX
SU01
255/40 R21 102Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  111.27 £
available
Details
Tracmax X Privilo RS01
Tracmax
X Privilo RS01
255/40 R21 102Y XL

Tyre type

 Summer tyres
limited stock
just  111.47 £
limited stock
Details
Road Rider Strada SUV
Road Rider
Strada SUV
255/40 R21 102Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  114.99 £
available
Details
Landsail RapidDragon SUV
Landsail
Landsail
RapidDragon SUV
255/40 R21 102Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 73dB
just  125.25 £
limited stock
Details
Tristar Sportpower
Tristar
Tristar
Sportpower
255/40 R21 102Y XL, SUV

Tyre type

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

(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 driven330976
04.12.2018fromMichael
Surprising amount of wheelspin from standstill in wet for 4wd suv. Also feels like the side walls are floppy on full lock However we have not driven the car with other tyres so nothing to compare against.
03.11.2018fromPete
Have been very pleasantly surprised as to haw good the Tristar Tyers have been I drive a mix of roads Motorway A road and country roads and the tyers have proformed very well in the dry and also in the wet.
(3)

Reifentest.com

just  129.42 £
available
Details
Leao Nova Force C/S
Leao
Leao
Nova Force C/S
255/40 R21 102W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 73dB
just  131.36 £
limited stock
Details
RoadX SU01
RoadX
SU01
255/40 R21 102Y XL

Tyre type

 Summer tyres
limited stock
just  134.45 £
limited stock
Details
RoadX RXQuest Sport SUV
RoadX
RXQuest Sport SUV
255/40 R21 102Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 71dB
just  135.30 £
available
Details
AUSTONE Athena SP-303
AUSTONE
Athena SP-303
255/40 R21 102Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 73dB
just  139.54 £
available
Details
Chengshan CSC-303
Chengshan
Chengshan
CSC-303
255/40 R21 102Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 73dB
just  139.54 £
limited stock
Details
Dynamo MSU01
Dynamo
MSU01
255/40 R21 102Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  140.03 £
limited stock
Details
Linglong Sport Master e
Linglong
Linglong
Sport Master e
255/40 R21 102V , EV

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance AWet grip BNoise emissions 70dB
just  140.71 £
available
Details
Unigrip Lateral Force Sport
Unigrip
Unigrip
Lateral Force Sport
255/40 R21 102Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 73dB
just  150.26 £
available
Details
Linglong Grip Master C/S
Linglong
Linglong
Grip Master C/S
255/40 R21 102W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 73dB
just  150.82 £
limited stock
Details
GT Radial TouringActive
GT Radial
GT Radial
TouringActive
255/40 R21 102Y XL, EV Ready

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  155.05 £
limited stock
Details
General Grabber GT Plus
General
General
Grabber GT Plus
255/40 R21 102Y XL, EVc

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 73dB
just  160.73 £
limited stock
Details
Falken AZENIS FK520
Falken
Falken
AZENIS FK520
255/40 R21 102Y XL BLK

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 71dB
just  177.29 £
available
Details
Marshal MU12
Marshal
Marshal
MU12
255/40 R21 102Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip CNoise emissions 72dB
just  186.97 £
limited stock
Details
Goodyear Eagle F1 Asymmetric 3
Goodyear
Goodyear
Eagle F1 Asymmetric 3
255/40 R21 102T XL, EVR, SUV

Tyre type

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

(52)
Average based on 52 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 driven106678016
16.07.2021fromRok Sharma
I drive fast and furious when required or slow and deliberate in slow traffic! I used these tyres on my 5 series BMW 525iSE and were superb! Now on Mrs Peugeot 308 hdi and pretty good!
22.06.2021fromSimon Murrell
Tyres are fine apart from one problem, the rears on a motorway are just really noisy at speed when they get down to around 4mm of tread, so much so that I thought it was a wheel bearing issue, and checked them out, they appeared to be OK, when I fitted new rear tyres the noise disappeared
03.01.2021fromRok Sharma
Great tyre so no complaints
17.11.2020fromCsaba
Incredible tyres. Was hard to find them in the UK but worth every penny. Noise level drastically reduced despite having another top brand previously. Good grip on all types of road. Easily takes on a bit of dynamic driving. Very impressed.
(52)

Reifentest.com

just  188.59 £
limited stock
Details
Giti Sport S2 SUV
Giti
Sport S2 SUV
255/40 R21 102Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 72dB
just  192.94 £
available
Details
Goodyear Eagle F1 Asymmetric 3
Goodyear
Goodyear
Eagle F1 Asymmetric 3
255/40 R21 102T XL, EVR, SUV

Tyre type

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

(52)
Average based on 52 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 driven106678016
16.07.2021fromRok Sharma
I drive fast and furious when required or slow and deliberate in slow traffic! I used these tyres on my 5 series BMW 525iSE and were superb! Now on Mrs Peugeot 308 hdi and pretty good!
22.06.2021fromSimon Murrell
Tyres are fine apart from one problem, the rears on a motorway are just really noisy at speed when they get down to around 4mm of tread, so much so that I thought it was a wheel bearing issue, and checked them out, they appeared to be OK, when I fitted new rear tyres the noise disappeared
03.01.2021fromRok Sharma
Great tyre so no complaints
17.11.2020fromCsaba
Incredible tyres. Was hard to find them in the UK but worth every penny. Noise level drastically reduced despite having another top brand previously. Good grip on all types of road. Easily takes on a bit of dynamic driving. Very impressed.
(52)

Reifentest.com

just  209.59 £
limited stock
Details
New
Goodyear Eagle F1 Asymmetric 6
Goodyear
Goodyear
Eagle F1 Asymmetric 6
255/40 R21 102W XL, EDR

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance AWet 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  209.59 £
available
Details
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