Sand, rock, gravel, grass and mud are just a few examples of how varied off-road terrain can be – not to mention that many of these surfaces vary in depth and consistency.
Given this nearly infinite range of terrain possibilities, it’s no wonder that tyre manufacturers don’t quote off-road traction figures. In fact, the only recognised tyre-traction test is one that’s conducted on asphalt (tar); and even then, the asphalt has to comply with a globally recognised (industry) standard.
Considering the above, the subject of traction is the most controversial of all tyre-design topics – particularily off-road, where many terrain types are loose in terms of traction, as opposed to firm, like asphalt. Because of this, off-road tyres need to possess design features that address the added problem of loose,…
