Tyres that are MT, which stands for Mud-Terrain, are generally characterised by their large and chunky tread patterns. This design provides grip by biting into muddy surfaces. The large open tread design also allows mud and dirt to clear more quickly between the lugs - an important anti-slip factor for negotiating muddy inclines or declines with safety and ease.
Mud-Terrain tyres are purely developed with muddy-like conditions in mind and are not really intended for highway use. They can be quite noisy at highway speeds and their open tread design has less contact with the road and therefore, limits traction. Tyre manufacturers do claim however that strong sidewalls and tread casings, deep aggressive tread patterns with large open centres will allow for excellent on-road characteristics in both wet and dry conditions. There are also claims that when tyre lug blocks are more interweaved, road conditions
should be a lot more stable.
Tyre compound technology is also greatly improving, with stronger tyre construction and the use of cut and chip resistant tread compounds.