What makes up the tire structure?
(Please reference the tire structure breakdown on the right provided by Michelin)
1. Inner liner: An airtight layer of synthetic rubber
2. Carcass ply: The layer above the inner liner, consisting of thin textile fiber cords (or cables) bonded into rubber. These cables largerly determine the strength of the tire and help it resist pressure. Standard tires contain about 1,400 cords, each one of which can resist a force of 33 lbs.
3. Lower bead area: This is where the tire grips the metal rim. The power from the engine and braking effort is transmitted from the rim of the tire to the contact area with the road's surface.
4. Beads: They clamp firmly against the tire's rim to ensure an airtight fit and keep the tire properly seated on the rim. Each wire can take a load of up to 3,968 lbs without risk of breaking. There are eight of them on your car - two per tire.
5. Sidewall: It protects the side of the tire from impact with curbs and the road. Important details about the tire are written on the sidewall, such as tire size and speed rating.
6. Crown piles (or belts): It largely determines the strength of the tire. It is made up of very fine, resistant steel cords bonded into the rubber.
7. Cap ply: This important safety layer reduces friction heating and helps maintain the shape of the tire when driving fast.
8. Tread: It provides traction and turning grip for the tire and is designed to resist wear, abrasion, and heat.
How can tires fail?
Tires gradually wear down as a result of normal driving. Wear happens faster during extreme acceleration, cornering and braking, or when tire inflation pressures are incorrect. Many newer vehicles use tire pressure monitoring systems to alert the driver if the pressure is incorrect. TPMS sensors are often battery powered and the batteries can fail over time. Road debris or obstacles can also damage the tire.
Results of failure:
Low tread is particularly dangerous when driving on wet roads. When the surface water is unable to be channeled through the tread grooves, the surface water can build a pressure wave in front of the wheel, lifting the tire off the road. Low tread depth also significantly increases braking distances. Over or under-inflated tires, or tires on vehicles with worn suspension components will show abnormal wear patterns.
Required Service or Repairs
Tires dread depth should be inspected regularly, and tires when necessary.
Tire 101: What is tire maintenance?
Tires are expensive, but their maintenance doesn't have to be expensive. Through proper maintenance, you can get the most life out of your tires. Most tires we see needing to be replaced are from neglect and lack of maintenance. Basic tire maintenance includes, tire rotations, tire balancing, checking tire pressure, and yearly alignment checks.
*As a reminder, Service Smart℠ clients receive free tire rotations and a free yearly alignment check* All clients may expect to have their tire pressure inspected.
Do you know the State of Texas Vehicle Inspection requires tires have a tread groove pattern depth of at least 2/32 of an inch when measured in a center tread groove.
Above picture and information from Michelin website.
Professional Auto Care
Professional Auto Care is an award-winning family owned and operated auto repair shop located in southwest Houston. It has been run by the same family, the Serratos Family, for nearly 35 years. Professional Auto Care services Domestic, Asian as well as select European vehicles. We are known for our professionalism, transparency and quality of work. Since our humble beginning in 1983, we always strove to provide the best, most reliable service in Houston with a hint of the personal touch. The founders, Everardo and Claudia Serratos, are still involved with the daily operations of the car maintenance and auto repair shop.