In turn, that also allows for bigger brake discs and calipers to be installed for a more athletic look and better stopping performance. Due to the performance-oriented nature of low-profile tires, they are typically made from a softer rubber compound that also helps to generate more grip and improve overall performance.
The sidewalls are also stiffer to prevent flex and ensure proper contact with the surface of the road. While the softer compound helps increase overall performance and handling, it can also result in increased wear, a harsher ride, and more. The softer compound means that low-profile tires typically wear faster than traditional tires. The wider contact patch and tread that tends to be geared more for performance results in more road noise while driving as well.
The thinner sidewalls mean that they have to be reinforced with harder materials by manufacturers in order to ensure proper performance and contact with the road. This causes more impacts to be felt by drivers and passengers, and puts more stress on the suspension. Sometimes, this requires modifications to be made to the suspension to compensate. Harsher road conditions and potholes can often cause fatal punctures and damage to not just the tire, but the wheel as well due to less sidewall to absorb the impact.
The air volume in the tire is the first place that feels and absorbs the impact of transients like rocks, bumps and potholes. The air pressure in the tire is the only defense your expensive new wheels have in this case.
Too low and that pothole could bend your new rim. If pressures are too high, though, you begin to lose the whole benefit of pneumatic tires. This is, of course, the standard noise, vibration and harshness trade off. Of course. Lower pressures will have a larger contact area on each tire. This means that they feel more sluggish on steering input. Higher pressures will also stiffen the sidewalls. You'll be less likely to roll over the sidewall in a steady state turn. Rolling the sidewall feels terrible, isn't great for the tire and can, in severe cases, pull the tire bead right out of the wheel.
However, your wear pattern will begin to accentuate the center of the tire. It depends. What trade offs are you willing to make? Do you have two driven wheels or four? AWD cars often need the front and rear tires to maintain an expected rolling circumference.
My car, for example, fusses at me when coasting down from speed in second gear if my rear pressures are too high relative to the fronts. My 16 inch wheel pressure recommendations have the fronts about three psi higher than the rears. The 17 inch wheel pressure recommendations are higher for both and are actually equal.
I suspect that that is a consequence of the fact that the higher front end weight causes a more significant impact on the rolling circumference on the smaller wheels. In almost all circumstances you should use the manufacturer's numbers as your guide. They are aware of the requirements of their wheels, and they do understand that a low profile requires a certain pressure to resist damage. This doesn't necessarily need to be a higher pressure although it sometimes is because the wheel construction also needs to be factored in.
If you do plan on changing the pressure, try only a few psi at a time. In my example, I run my fronts at 36psi, and my rears at 34 - against a manufacturer recommendation of 32psi all round - with my 18" low profile tyres, against the stock 16" or 17" tyres. To answer the original question, there is no value in an Original Equipment Manufacturer OEM tire pressure recommendation, if you are not using OEM recommended wheels and tire sizes.
The ONE really important "recommendation" is that you should never exceed the maximum rated sidewall pressure cold. Valve caps also help to protect your tyres from sudden or consistent loss of pressure. This chart covers the maximum vehicle load, the normal pressure for cold tyres, and the recommended tyre size for your car.
For example, whether you can have low profile tyres or another style. Note how the air pressure increases with plus sizing to meet the load carrying capacity for the car. These include:. Sometimes a nail, screw or another object will puncture a tyre and act as an inefficient plug. This is why you should always remain alert to any symptoms, such as unnatural pulling or vibrations.
In this scenario, you should put on your spare tyre and visit your nearest Tyrepower to repair or replace, if necessary the punctured unit. One of the main causes for tyre failure is under inflation and overloading.
This is especially common in trucks and 4WDs, as the load configurations for these types of vehicles is vast. Can someone please clarify? I blow a lot of tires and hear a lotta different stuff I wonder if the tires are too soft??? Dec 11, 1, 3 What does the owners manual say? Jun 5, 2, 3 0. Meh, what kind of car do you have? I usually inflate everything at my job discount tire to 35 unless its a heavier vehicle.
Apr 29, 48, 14 It should be on your door jamb. Vette73 Lifer. Jul 5, 21, 8 0. About cold and warm. I liek to have mine set at 34 front and 32 rear. Feb 1, 1, 0 Read the freakin tire? Originally posted by: mesthead21 Meh, what kind of car do you have? RU Lifer.
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