Off Road Grading Index (ORGI)
Choosing the right tyre can be difficult. Every tyre a manufacturer makes is designed
with specific strengths in mind. How well it performs to these strengths depends on
the construction methods, materials used and the technologies applied in the design
and testing process. 4x4 tyres by definition introduce even more variables than these
into the mixing pot.
To make it a little easier to select the right tyre, a good place to start is to think
about what you intend to use your 4x4 for. If you are intending to use your vehicle off
road then you need to determine just how extreme the terrain is likely to be and how much
time you are likely to spend on it. The ORGI guide assigns every 4x4 tyre we feature with
an off-road competency rating between 1 & 10. From here it is possible to disregard
certain tyres as unsuitable and narrow the field of selection down.
Note that this is a subjective rating. Each tyre is assigned its level of off-road ability
according to a combination of our theoretical and practical experience, coupled with
manufacturer and consumer feedback.
Also, note that generally the more aggressive the tyre, the less competent it is on the road.
Although the very best tyres like B.F.Goodrich will still have good road manners, you will
find that tyres generally become noisier when they are more off-road biased.