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Home  >  255 / 40 21  >  Bridgestone  >  Bridgestone 255 / 40 21
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  Bridgestone   255/40  21     

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Prices include VAT and delivery within Ireland

Bridgestone Turanza 6
Bridgestone
Bridgestone
Turanza 6
255/40 R21 102Y XL, Enliten / EV

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 71dB
just  € 286.97
 
available
Details
Bridgestone Potenza Sport
Bridgestone
Bridgestone
Potenza Sport
255/40 R21 102Y XL MGT

Tyre type

 Summer tyres
available
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.

(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'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  € 310.13
 
available
Details
Bridgestone Alenza 001
Bridgestone
Bridgestone
Alenza 001
255/40 R21 102Y XL B-Silent R0

Tyre type

 Summer 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. Tyretest.com offers over 430 000 tests firsthand - from consumers for consumers.

(29)
Average based on 29 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 driven7074659
01.11.2020fromStewart Blake LEISHMAN
This is the second set of the same tyres, and yes they hold the road well. When you have 20 something inch of rubber on the road they can really hold there own. The Which magazine holds Bridgestone to high esteem.
13.10.2020fromBowber
Great tyres, good grip especially in wet, feel safe! Noise isn’t too crazy, hopefully get some decent mileage out of them
11.07.2020fromPat
Much better in the wet than Dunlop tyres that were on the car.
24.03.2020fromSmiffy
OEM tyre for car. Provide amazing grip in a 4 wheel drive lightweight sports car. Cornering at speed is amazing, braking too.
(29)

Reifentest.com

just  € 385.32
 
available
Details
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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  € 114.83
 
available
Details
Minerva MV714
Minerva
Minerva
MV714
255/40 R21 102Y XL

Tyre type

 Summer tyres
available
just  € 123.08
 
available
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  € 123.31
 
limited stock
Details
Tracmax X Privilo RS01
Tracmax
X Privilo RS01
255/40 R21 102Y XL

Tyre type

 Summer tyres
available
just  € 123.94
 
available
Details
Radar Dimax R8+
Radar
Radar
Dimax R8+
255/40 R21 102Y XL, EVc

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 73dB
just  € 126.05
 
available
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  € 139.36
 
available
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  € 139.37
 
available
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  € 141.97
 
available
Details
RoadX SU01
RoadX
SU01
255/40 R21 102Y XL

Tyre type

 Summer tyres
limited stock
just  € 144.61
 
limited stock
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  € 159.69
 
limited stock
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  € 164.08
 
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  € 167.50
 
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  € 172.15
 
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  € 172.89
 
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  € 175.95
 
limited stock
Details
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  € 176.25
 
limited stock
Details
Crosswind Grip Peak Winter
Crosswind
Grip Peak Winter
255/40 R21 102V XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip ANoise emissions 73dB
just  € 180.11
 
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  € 186.24
 
available
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  € 189.87
 
limited stock
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  € 197.65
 
limited stock
Details
Gripmax SureGrip A/S
Gripmax
SureGrip A/S
255/40 R21 102W XL

Tyre type

 All-season tyres
available
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 driven504906
19.11.2021fromIan Burton-Palmer
These tyres work really well in the wet or the dry road conditions. I also think that they are quite quiet compared the previous set of tyres I had on this vehicle. All round these are a great choice.
02.06.2021fromJohn Williams
A decent budget priced winter tyre. Very impressed with the grip quality in snow
(3)

Reifentest.com

just  € 198.68
 
available
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  € 201.76
 
available
Details
Kumho WinterCraft WS71 SUV
Kumho
Kumho
WinterCraft WS71 SUV
255/40 R21 102W XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 73dB
just  € 227.71
 
limited stock
Details
Kumho WinterCraft WS71 SUV
Kumho
Kumho
WinterCraft WS71 SUV
255/40 R21 102W XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 73dB
just  € 228.09
 
limited stock
Details
Vredestein Quatrac Pro+
Vredestein
Vredestein
Quatrac Pro+
255/40 R21 102Y XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 73dB
just  € 232.80
 
available
Details
There are 28 of 90 tyres displayed
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Prices include VAT and delivery within Ireland. Free shipping only for 2 or more tyres.

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