Start with the vehicle data
A large SUV used on roads may need quite different tyres from a similar-looking vehicle regularly driven off road. Check the vehicle documents first: approved dimensions, axle loads and any special construction requirements establish the boundaries. The weight printed in a sales brochure is less useful for ordering than the information for your particular engine and equipment specification.
Dividing the permitted total mass by four is not a complete tyre specification exercise. Front and rear axles may carry different loads, and the tyre's technical conditions also apply. Have the required capacity confirmed against the vehicle approval. An XL version may be specified, but it is not a universal substitute for every other construction.
Road use or an off-road emphasis?
For mainly paved journeys, do not put an aggressive off-road appearance ahead of wet braking, road behaviour and noise. A dramatic tread photograph does not establish performance in everyday rain. If unpaved routes are genuinely part of your use, describe their nature and frequency. An occasional gravel car park is different from regular demanding off-road work.
Four-wheel drive does not settle the tyre question either. Braking forces still pass through the tyres' contact patches. Choose seasonal suitability around road conditions and check the winter marking. An SUV's driven-wheel arrangement does not create permission to use unsuitable tyres in winter conditions.
Treat replacement as a system
If one tyre is damaged, check the rules for using its replacement alongside the others. Permitted differences in rolling circumference can be relevant on all-wheel-drive vehicles. Ask for the specific manufacturer's requirement before simply ordering the same nominal size. Differences in tread depth and model version deserve attention.
Finally compare quotations for identical specifications, including fitting. Establish whether valve or sensor work is included. A higher-capacity tyre does not permit overloading the vehicle: luggage, passengers and trailer nose weight must remain within the vehicle limits. If you regularly travel fully loaded, the pressure instruction for that condition matters as much as the product name.
For a planned wheel-size change, also verify clearance and approval for the braking system. A wheel that appears to fit is not sufficient technical evidence.
