The Dunlop Grandtrek PT5A is a highway terrain summer tyre developed specifically for large SUVs and full-size 4x4 vehicles, including serving as original equipment on the Toyota Land Cruiser 300 Series and Lexus LX 600 F Sport. Sumitomo Rubber used advanced simulation technology to develop a tread pattern that optimises stress distribution across the full contact footprint, resulting in a 12 percent improvement in steering stability compared to its predecessor. A symmetrical tread pattern promotes even and consistent wear across the tyre’s life, while deep circumferential grooves maintain strong aquaplaning resistance and wet traction. The compound is formulated for reduced rolling resistance to support improved fuel efficiency over long distances without compromising durability or wear life. For premium SUV drivers who spend most of their time on-road, the Grandtrek PT5A delivers the stability, comfort, and confident handling that vehicles of this size and weight demand.
Best for:
Not intended for: Off-road adventure driving, mud terrain, or aggressive all-terrain use.
Simulation-optimised tread pattern: Uses advanced modelling technology to distribute tread stress evenly across the contact patch, improving steering stability and reducing irregular wear. Drivers of large, heavy SUVs benefit from more consistent and predictable on-road handling behaviour.
Symmetrical tread design: Ensures uniform contact with the road surface regardless of fitment position, which promotes even tread wear across all four tyres. This extends the overall service life of the tyre and reduces the frequency of replacements.
Deep circumferential grooves: Channel water efficiently away from the contact area under the tread to reduce aquaplaning risk and maintain wet traction in heavy rain. Drivers retain braking confidence and directional stability even on saturated road surfaces.
Low rolling resistance compound: An optimised rubber formulation reduces the energy required to keep the tyre in motion at highway speeds. This directly supports better fuel efficiency and lower CO2 output, which is particularly relevant for heavier SUV platforms.
Reinforced sidewall construction: Provides the structural rigidity needed to handle the weight, torque, and load characteristics of full-size SUVs and 4x4 vehicles. Cornering stability and high-speed composure are maintained even when the vehicle is fully loaded.
