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  4. GT Radial 255 / 40 17
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  GT Radial  255/40  17   

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Hankook Ventus S1 Evo 2 K117 HRS
Hankook
Hankook
Ventus S1 Evo 2 K117 HRS
255/40 R17 94W 4PR with rim protection (MFS), runflat SBL

Season

 Summer tyres
EU Tyre Label
EU Tyre Label
Roll resistance DWet 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.

(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 driven387500
08.11.2013fromShane
At least it is not really suits on BMW 5 Series and it's really loud, increasing the noise in the cabin.
(2)

Reifentest.com

at the moment, this product is not in stock
Details
Free shipping**
2 - 5 working days delivery time***
Michelin Pilot Sport Cup 2
Michelin
Michelin
Pilot Sport Cup 2
255/40 ZR17 (98Y) XL Connect

Season

 Summer tyres
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip CNoise emissions 73dB
at the moment, this product is not in stock
Details
Free shipping**
2 - 5 working days delivery time***
Continental PremiumContact 6 SSR
Continental
Continental
PremiumContact 6 SSR
255/40 R17 94W EVc, with kerbing rib, runflat

Season

 Summer tyres
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip ANoise emissions 72dB
at the moment, this product is not in stock
Details
Free shipping**
2 - 5 working days delivery time***
Hankook Winter i*cept evo3 W330
Hankook
Hankook
Winter i*cept evo3 W330
255/40 R17 98V XL 4PR, with rim protection (MFS) SBL

Season

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 73dB
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 driven607725
02.06.2023fromIwona
The tires are very quiet, they hold well in the snow and rain. Reinforced model for Mercedes E class 258KM. I highly recommend.
(2)

Reifentest.com

List price*  € 282.00
just  € 274.29
Free shipping for ordering minimum 2 pieces.
available
Details
Free shipping**
2 - 5 working days delivery time***
Yokohama Advan Neova (AD09)
Yokohama
Yokohama
Advan Neova (AD09)
255/40 R17 98W XL RPB

Season

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip ANoise emissions 71dB
List price*  € 353.00
just  € 284.37
Free shipping for ordering minimum 2 pieces.
limited stock
Details
Free shipping**
2 - 5 working days delivery time***
Continental UltraContact
Continental
Continental
UltraContact
255/40 R17 98Y XL EVc, with kerbing rib

Season

 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. <span><em>Tyretest.com</em></span> 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 driven562176
13.07.2025fromFred Wakeling
Used Tyres on a tour around Europe.
06.09.2024fromNick Georgiou
just after 7months of normal use you see what happened in the photo below. The Continental in greece refused to renew it so i have to pay 160 euros to put a new one. NEVER continental tires again!!!!!!!!!!!!!!!!!
(3)

Reifentest.com

List price*  € 254.50
just  € 204.29
Free shipping for ordering minimum 2 pieces.
available
Details
Free shipping**
2 - 5 working days delivery time***
Pirelli P Zero Rosso Asimmetrico
Pirelli
Pirelli
P Zero Rosso Asimmetrico
255/40 ZR17 (94Y) N5, with rim protection (MFS)

Season

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

(14)
Average based on 14 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 driven3295908
02.09.2015fromDavid Land
Very good tyres at a good price
15.11.2014fromNick
Massive amounts of grip in a straight line and through corners in the dry and for an ultra high performance summer Tyre they perform almost as well in the wet. Braking is excellent. Road noise and wear rate are mediocre which has to be expected from an ultra high performance summer tyre. Comfort is sacrificed for a high level of communication between road and driver. I can trust these tyres while pushing the car to it's limits.
09.11.2014fromR.M.
Continentals are the recommended brand for a 911 but it came standard with Pirelli's and do the job absolutely fine, great tyre and superb performer especially on the Scottish country roads.
21.11.2012fromScott Graham
Great tyres (original fitment on the 911)..!
(14)

Reifentest.com

List price*  € 453.00
just  € 288.80
Free shipping for ordering minimum 2 pieces.
available
Details
Free shipping**
2 - 5 working days delivery time***
Michelin Pilot Sport PS2
Michelin
Michelin
Pilot Sport PS2
255/40 ZR17 (94Y) N3

Season

 Summer tyres
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.

(89)
Average based on 89 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 driven19107200
09.02.2023fromIan Broad
The tyres are Porsche recommended for my car, so it was best to fit the correct tyre, as it would have had at factory. My car had covered only 6900 miles when I purchased it. The original tyres were on the car.
30.09.2015fromJohn ashton
Really good gripping tyre well worth the extra pennies :)
09.08.2014fromAndyH
Always a good idea to but the best tyres you can and these are great. Only downside is road noise which can get irritating at times
24.05.2013fromRoddie
Much more traction offered from these tyres than previous 255/40 R18 Michelin Pilot Sport 2 or the Pilot Sport 1. No feeling of poorer ride quality despite lower profile. An unexpected big jump in overall performance and the traction control light barely appears at all now- compared to all the time out of junctions with sharp left turns. Must be better compound and/or tyre carcass construction.
(89)

Reifentest.com

at the moment, this product is not in stock
Details
Free shipping**
2 - 5 working days delivery time***
Bridgestone RE71 RFT
Bridgestone
Bridgestone
RE71 RFT
255/40 ZR17 N0, with rim protection (MFS), runflat

Season

Oldtimer

 Summer tyres
at the moment, this product is not in stock
Details
Free shipping**
2 - 5 working days delivery time***
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