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  4. Uniroyal 255 / 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:
 
/
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  Uniroyal  255/40  18   

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Uniroyal RainSport 5
Uniroyal
Uniroyal
RainSport 5
255/40 R18 99Y XL EVc, with kerbing rib

Season

 Summer tyres
2 - 4 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip A Noise emissions 73 dB
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.

(23)
Average based on 23 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 driven 4083744
10.12.2025 from Stephen Brown
Great tyres, safe and give confidence on all surfaces and conditions
13.06.2025 from stevi
best tyres ever had them on Audi A3 TDI sport ,fiesta st .ford focus MK2,jaguar xj 3Ltdi best grip ever handles in wet like a great tyre does when dry grips so hard in the dry the engine struggles to go faster because of the grip tried all the named brands like Mitchellen ,toyos ,co rentals and the uni royals beat them ever time not just price but grip safety and handling too .never use any other tyre the 5s are better than the 3s but not by much . hard to improve on such a great tyre
02.11.2024 from A Pritchard
Great.
13.04.2024 from Geof Wassell
Driving within my own ability and the ability of the vehicle I choose to drive is what I do. The tyres on my car are part of the interface between driver and road. I prefer to drive with the tyres fully inflated in order to feel the feedback from the surface of the road through noise, suspension and steering, I ballance throttle and brake response with weather conditions, road conditions and temperature. Tyres with less grip just dictate that I should moderate speed and braking at an increased rate. Noisey tyres provide slightly better feedback than silent tyres. The road with current traffic congestion burden isnt the place for performance spirited driving but is the place where defensive driving must be used. I would describe my tyres as competent.
(23)

Reifentest.com

List price*  252.00 £
just  128.96 £
In Stock
Details
Free shipping **
Show all the tyres in the selected size
Kpatos FM601
Kpatos
FM601
255/40 R18 99Y XL

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 73 dB
just  58.81 £
In Stock
Details
Free shipping **
Invovic EL601
Invovic
EL601
255/40 ZR18 99Y XL

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 73 dB
just  58.81 £
In Stock
Details
Free shipping **
Accelera Iota EVT
Accelera
Accelera
Iota EVT
255/40 ZR18 99Y XL EV

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip B Noise emissions 71 dB
just  64.76 £
In Stock
Details
Free shipping **
Nankang Sportnex AS-3
Nankang
Nankang
Sportnex AS-3
255/40 ZR18 99Y XL [EV+], with rim protection (MFS)

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip A Noise emissions 73 dB
just  65.37 £
limited stock
Details
Free shipping **
Milever Sport Macro MA349
Milever
Sport Macro MA349
255/40 R18 99W XL

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 73 dB
just  65.59 £
In Stock
Details
Free shipping **
Three-A Ecowinged
Three-A
Ecowinged
255/40 R18 95Y

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip B Noise emissions 72 dB
just  65.59 £
In Stock
Details
Free shipping **
Accelera Phi
Accelera
Accelera
Phi
255/40 R18 99Y XL

Season

 Summer tyres
1 - 2 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 70 dB
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.

(22)
Average based on 22 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 driven 1538590
16.01.2019 from Prith
Probably the best in budget tyres
13.05.2014 from Robert
In the corners it slips
14.09.2013 from Adam
good price fast shipping
29.01.2012 from Al
Great tire at the price
(22)

Reifentest.com

just  66.50 £
limited stock
Details
Free shipping **
APlus A610
APlus
A610
255/40 ZR18 99Y XL

Season

 Summer tyres
2 - 4 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 72 dB
just  67.96 £
limited stock
Details
Free shipping **
Pace ALVENTI
Pace
Pace
ALVENTI
255/40 R18 99W XL

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance B Wet grip B Noise emissions 73 dB
just  68.03 £
In Stock
Details
Free shipping **
Road Rider Strada Max
Road Rider
Strada Max
255/40 ZR18 99Y XL

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 72 dB
just  68.51 £
In Stock
Details
Free shipping **
Nordexx NS9200
Nordexx
NS9200
255/40 R18 99Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 73 dB
just  69.00 £
In Stock
Details
Free shipping **
Triangle SnowLink PL02
Triangle
Triangle
SnowLink PL02
255/40 R18 99V XL

Season

 Winter tyres
2 - 4 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance D Wet grip C Noise emissions 73 dB
just  69.78 £
limited stock
Details
Free shipping **
Saferich FRC26
Saferich
FRC26
255/40 ZR18 99W XL

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip B Noise emissions 72 dB
just  72.57 £
In Stock
Details
Free shipping **
Lanvigator Catch Power
Lanvigator
Catch Power
255/40 ZR18 99W XL

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip C Noise emissions 73 dB
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.

(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 driven 112056
08.01.2024 from H
No grip on snow or ice whatsoever. If you have stopped on snow and tried to move all you get is wheel spin and a car that&#39;s sliding everywhere. On 90-degree road bends even at very slow speeds the car slides away from the turn. Talking about stopping power - it is not existent. On level roads, it takes a lot of distance to stop but if you&#39;re going downhill in very slippery conditions had an experience where it took about 100-150m to stop. Can&#39;t even fathom how these tires passed safety regulations. If you value your safety and your car DO NOT BUY!
(1)

Reifentest.com

just  73.44 £
In Stock
Details
Free shipping **
AUSTONE SP901
AUSTONE
SP901
255/40 R18 99H XL

Season

 Winter tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance D Wet grip C Noise emissions 73 dB
just  77.16 £
In Stock
Details
Free shipping **
Profil PS790 AS
Profil
PS790 AS
255/40 R18 99V XL, remould

Season

 All-season tyres
2 - 5 working days delivery time
limited stock
just  77.32 £
limited stock
Details
Free shipping **
Landspider Sportraxx UHP
Landspider
Sportraxx UHP
255/40 ZR18 99Y XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 73 dB
just  78.19 £
limited stock
Details
Free shipping **
Tracmax X-Privilo S330
Tracmax
X-Privilo S330
255/40 R18 99V XL

Season

 Winter tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 73 dB
just  78.19 £
In Stock
Details
Free shipping **
Tomket Sport
Tomket
Sport
255/40 R18 99Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 73 dB
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 driven 196112
21.09.2025 from John
I bought these tyres as wanted a budget sport tyre for our recently purchased vauxhall Insignia, so got a pair from Oponeo. They sent Sport 2&#39;s which are a Chinese made model. Have been generally happy with these as been on some long &amp; many short trips in last year. They have given confidence inspiring performance through all weathers &amp; never given me reason to regret buying them. They wear well too as still lots of tread left. Recommended...
23.08.2022 from Callam
Good grip on a dry warm day , Starts excessive oversteer in the wet, and they are almost down to the treadwear indicator in just under 3 k miles . Easily looses traction under acceleration in the wet
(2)

Reifentest.com

just  78.25 £
In Stock
Details
Free shipping **
Sailun Atrezzo ZSR2
Sailun
Sailun
Atrezzo ZSR2
255/40 ZR18 99Y XL with rim protection (MFS)

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance B Wet grip A Noise emissions 69 dB
just  78.25 £
limited stock
Details
Free shipping **
Kustone Passion P9
Kustone
Passion P9
255/40 ZR18 99W XL runflat

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 73 dB
just  78.43 £
In Stock
Details
Free shipping **
Zmax Zealion
Zmax
Zealion
255/40 ZR18 99W XL

Season

 Summer tyres
2 - 5 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip C Noise emissions 71 dB
just  79.42 £
limited stock
Details
Free shipping **
CEAT SportDrive
CEAT
CEAT
SportDrive
255/40 R18 99Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip A Noise emissions 71 dB
just  80.13 £
In Stock
Details
Free shipping **
Lanvigator Wintergrip UHP
Lanvigator
Wintergrip UHP
255/40 R18 99V XL

Season

 Winter tyres
1 - 2 working days delivery time
limited stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 73 dB
just  81.50 £
limited stock
Details
Free shipping **
Tracmax X Privilo TX3
Tracmax
X Privilo TX3
255/40 ZR18 99Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 69 dB
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.

(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 driven 847702
(1)

Reifentest.com

just  82.40 £
In Stock
Details
Free shipping **
Radar Dimax R8+
Radar
Radar
Dimax R8+
255/40 ZR18 99Y XL EVc

Season

 Summer tyres
1 - 2 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip B Noise emissions 73 dB
just  82.72 £
In Stock
Details
Free shipping **
Envoy Motiva UHP
Envoy
Motiva UHP
255/40 ZR18 99Y XL

Season

 Summer tyres
2 - 5 working days delivery time
In Stock
Tyre label
Tyre label
Roll resistance C Wet grip A Noise emissions 70 dB
just  82.84 £
In Stock
Details
Free shipping **
There are 28 of 223 tyres displayed
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** Prices include VAT and delivery within mainland UK (excl. Scottish Highlands).

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