The Dunlop Grandtrek AT20 is a highway terrain tyre engineered for SUVs and 4x4s where on-road refinement, ride comfort, and everyday reliability are the primary requirements, with sufficient construction robustness to manage the occasional light gravel road or unsealed surface. The AT20's highway-oriented symmetric tread pattern features wide circumferential grooves and lateral sipes across the tread face to support water evacuation and wet grip on sealed roads, while the tread block layout is tuned to minimise road noise and deliver a smooth, composed ride at highway speeds. The continuous centre rib supports stable straight-line tracking and predictable steering response during everyday highway driving. Wear resistance is a key strength of the AT20's compound, making it a cost-effective long-term choice for high-mileage SUV drivers who spend the majority of their time on sealed surfaces. The Grandtrek AT20 prioritises on-road comfort and durability above off-road capability, positioning it firmly as a highway-first terrain tyre.
Best for:
Not intended for: All terrain or off-road use beyond light gravel, aggressive driving, or performance applications.
Highway-oriented symmetric tread pattern: Designed for even wear and stable on-road handling across the contact patch during sustained highway driving. Delivers predictable, composed behaviour for SUV drivers who spend the majority of their time on sealed surfaces.
Wide circumferential grooves with lateral sipes: Evacuate water from the contact patch on wet sealed roads and generate additional biting edges on damp surfaces. Support safe wet-weather braking and reduce aquaplaning risk during the on-road driving that defines the AT20's primary application.
Continuous centre rib: Maintains uninterrupted road contact along the tyre centreline during straight-line highway driving. Provides stable tracking, precise steering response, and reduced road noise at cruising speeds.
Low road noise tread block tuning: Tread block sizing and pitch sequencing minimise tonal noise generation at highway speeds. Creates a quieter, more refined cabin environment suited to the daily highway use the AT20 is designed for.
Long-wear highway compound: Formulated to resist the sustained wear generated by constant sealed-road use under SUV and 4x4 loads. Provides extended tread life and lower replacement costs for high-mileage everyday SUV drivers.
