Dunlop PT5 225/55 R18
The Dunlop Grandtrek PT5 225/55 R18 is a premium SUV touring tyre developed for vehicles that spend most of their time on paved roads. Dunlop officially lists this exact size as 225/55 R18 98V.
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PT5 225/55 R18 is Recommended for Following Cars
The Dunlop Grandtrek PT5 225/55 R18 is a premium SUV touring tyre developed for vehicles that spend most of their time on paved roads. Dunlop officially lists this exact size as 225/55 R18 98V. The tyre combines a 225 mm section width, a 55 aspect ratio, radial construction and an 18-inch rim diameter, making it a road-focused SUV fitment for vehicles approved for these dimensions.
The Grandtrek PT5 is designed around smooth ride quality, reduced tyre noise and stable steering. Dunlop uses a silica compound to support grip on both dry and wet roads, while its Rounder Contact Patch creates a more rounded road-contact shape intended to reduce vibration and distribute forces more evenly during braking and road impacts. Dunlop also states that the PT5 uses a contact area approximately 8 percent larger than its comparison design, helping reduce vehicle wandering during lane changes and contributing to an improvement in directional control of up to 12 percent under Dunlop's stated comparison conditions.
Balanced 18-Inch SUV Touring Fitment
At 225 mm wide with a 55 profile, the tyre has a nominal sidewall height of approximately 123.8 mm, calculated as 55 percent of the section width. Combined with an 18-inch wheel, this creates a balanced SUV tyre package with more sidewall than many lower-profile road tyres while retaining the larger wheel diameter common on modern crossovers and SUVs.
For Pakistani driving, the PT5's focus on paved-road comfort, quietness and directional stability is relevant to city use, motorway travel and longer intercity journeys. Dunlop also uses lateral grooves of different widths and narrower transverse shoulder tread elements to reduce pattern noise and support a smoother road experience.
Dunlop lists this exact size as 98V. Before installation, buyers should verify the load index and speed symbol on the physical tyre and confirm that 225/55 R18 is approved for the vehicle. Wheel width, overall diameter, suspension clearance and load requirements must also be satisfied. Cold inflation pressure should follow the vehicle manufacturer's recommendation, with regular pressure, alignment and tread checks used to maintain even wear and stable road behaviour.
PT5 Technology
Silica Compound. Dunlop uses a silica-based tread compound in the Grandtrek PT5 to support grip on both dry and wet road surfaces while maintaining the tyre's road-comfort characteristics.
Rounder Contact Patch. The tyre uses a more rounded contact-patch profile designed to reduce vibration from road impacts and distribute forces more evenly during braking and everyday driving.
Expanded contact area. Dunlop states that the PT5 uses an approximately 8 percent larger contact area compared with its development reference, helping reduce vehicle wandering during lane changes.
Directional stability optimisation. Dunlop reports an improvement in directional-control performance of up to 12 percent under its stated comparison conditions.
Variable-width lateral grooves. Lateral grooves with different widths are used around the tread to support force distribution, stability and acoustic comfort.
Narrower shoulder tread elements. Dunlop reduced the width of transverse tread elements around the shoulder area by approximately 30 percent in its development design to help reduce pattern noise.
Noise-control tread design. The combination of lateral groove geometry and shoulder tread design is intended to absorb and reduce tyre-generated noise during road use.
Highway-focused SUV construction. The Grandtrek PT5 is developed for SUVs, PPVs and 4x4 vehicles where road comfort, quietness and stable on-road handling are major priorities.
Radial construction. The 225/55 R18 uses radial construction, represented by the R designation in the tyre size.
PT5 Features
- Premium SUV touring tyre
- Designed for road-focused SUVs and 4x4 vehicles
- Silica tread compound
- Dry and wet road grip focus
- Rounder Contact Patch design
- Designed to reduce road-impact vibration
- Improved force distribution across the contact area
- Approximately 8 percent larger contact area in Dunlop's development comparison
- Designed to reduce vehicle wandering during lane changes
- Up to 12 percent directional-control improvement under Dunlop's stated comparison conditions
- Variable-width lateral grooves
- Stable road-handling focus
- Narrower transverse shoulder tread elements
- Shoulder design developed to reduce pattern noise
- Smooth and quiet ride focus
- Suitable for city and highway road use
- 225/55 R18 officially listed as 98V
- Radial tyre construction
- Fit only to manufacturer-approved vehicle specifications
- Load index and speed rating must meet vehicle requirements
- Inflation pressure should follow the vehicle manufacturer's specification
Available Sizes in PT5
Understanding Tyre Size 225/55 R18 / How to Read Tyre Size
Vehicles with 225/55 R18 Tyre Size
What does 225/55 R18 mean?
225/55 R18 is the tyre size.
225 is the maximum width of the tyre in milimetres(mm). When the vehicle is fully loaded its width can expand maximum upto 225 milimetres(mm).
55 is the ratio among width and height of the tyre from its rim. it means that the height of the tyre is precisely 55% of the 225mm. Lower ratio improves road grip, but it reduces comfort to some extent.
R – refers to the method the tyre is produced. The letter “R” is found on all modern car tyres. It indicates the radial structure of tyre cosntructed with steel wires.
18 represents the diameter of the rim. It is a measurement in inches(“). This number should be rememberd as it is the measurement of the rims. It has to match exactly to what is mentioned in the car manual.
