From coopertire.co.uk : DISCOVERER ATR, an All-terrain 4x4 tyre - Vtech Optimized Tyre Profile: Using state-of-the-art Vtech computer aided engineering, a mould profile was designed to provide favourable balance of wear and handling characteristics. - Chamfered Tread Elements: As part of their refined shape, the tread elements are strategically chamfered at the sawtooth circumferential grooves and also at the tip of the centre elements to increase element stability to fight irregular wear. - Extensive ‘Zig-Zag’ Siping: The extensive number of sipes on the centre rib and tread elements are deep to provide for long, dependable traction in all-weather conditions while the ‘zig-zag’ shape increases the effectiveness of the gripping edges - 60% on road, 40% off road
Cooper