You will find that the P265/75-R15 is what they call a regular road tyre and is a standard size for a road car. However the 31x10.5-R15 is actually an off-road tyre and is designed to be wider with more grip to help with the rough terrain.
If you are wanting to research tyre sizes then you should find a lot of helpful advice from car forum websites or even car tyre specific forums. To search for these forums you are best to head to google.com and type in keywords such 'Car Tyre Forums' or 'Car Forums'. You should find a wealth of options and so a great way of narrowing down which forums to join is to see how many members they have and how often it seems to be updated.
Most forums will allow you to start your own thread and so you will be able to post any tyre-related queries on the forum and wait for the responses. It is also worth heading down to the local garage, even if you do not know the mechanics that well, I am sure they will be happy to offer any advice on different tyres. It is always worth doing your research to make sure you are getting the tyres that are best suited to your car and needs.
If you are wanting to research tyre sizes then you should find a lot of helpful advice from car forum websites or even car tyre specific forums. To search for these forums you are best to head to google.com and type in keywords such 'Car Tyre Forums' or 'Car Forums'. You should find a wealth of options and so a great way of narrowing down which forums to join is to see how many members they have and how often it seems to be updated.
Most forums will allow you to start your own thread and so you will be able to post any tyre-related queries on the forum and wait for the responses. It is also worth heading down to the local garage, even if you do not know the mechanics that well, I am sure they will be happy to offer any advice on different tyres. It is always worth doing your research to make sure you are getting the tyres that are best suited to your car and needs.
