How to choose tires for your SUV, part 1

Tires are critical components for the performance, functionality and safety of your SUV. For more references, check out: best tires for subaru forester


After all, they are the only points of contact with the ground. All the engineering of the SUV goes through them in the end.

We have to understand that an SUV is different from a car, a truck, a pickup.


To choose the tires, we start with the measurements.


· You should not change the tire outer diameter by more than 3℅.

· In addition to various engineering problems, it is prohibited by law.

· If you change the wheel rim, you must compensate for the tire dimensions. Usually changing the profile measurement, the "height" of the side.

· This profile is a percentage measure of the tire width.

· It is best to use the original measures, but some types of tires are not even manufactured in certain measures as they are inappropriate for the proposed use.

· A low profile tire gives more cornering stability due to less lateral deformation. But it gets harder and more uncomfortable, subject to damage to holes and stones, requiring greater calibration pressure.

· That is why off-road tires have a higher profile, to better withstand impacts that are more deformed, in addition to other construction features that we will talk about in the future.

· A wider tire width worsens consumption, improves grip in curves, worsens aquaplaning in the rain, improves braking capacity, improves power delivery at starts, worsens maximum speed, improves the ability to walk on sand, worsens the to walk in the mud, the noise worsens, improves comfort, worsens consumption, worsens the strength to turn the steering wheel.

· C atom the world is not ideal, some things get better and others worse.

· You need to know what you want to use the SUV for and where you want to travel.

· In addition to the measurements, there are the load and speed indexes.

· You should not buy tires that support less weight per wheel than stated in your SUV manual.

· In addition to the risk of bursting, tearing, and fatal bubbles, the internal housing deforms too much in curves and brakes, the heating will be greater and the wear will be greater.

· Using one with a much higher load index would make the tire too stiff, losing grip, stability and comfort.

· The tire is an elastic component. Not too much, not too little.

· It's a matter of suitability for the vehicle and use.

· The speed index is easy to understand.

· If you use a tire designed for 100 km / h running at 180 km / h, the tire will overheat, the carcass will deform, lose stability and even control, causing a serious accident.

· Subaru Forester 2015 tires are 225 / 55R18, 97V.

· 225 mm wide, 55℅ wide profile, for 18 inch rim wheels, support 730 kg / wheel, maximum speed of 240 km / h.

· To make it easier for you to choose measurements and these indices, see this page here for a tire calculator and tables.

· In the next articles we will address other factors in the choice of tires.

· In the meantime, be sure to read and watch videos from previous tire posts.

· Another tire calculator here is very good and works well on cell phones.

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