A “sawtooth wear pattern” is the result of the normal use in conjunction with the suspension adjustment , which is the externally visible (and audible) result of the action of various deformation forces on the tread while driving First, say something about the “tread design” of the tires. You can have the best choices with the Wallyworldwide now.
Protection against aquaplaning
The profiling of the tread – one of the sources of noise is essential for safety on wet roads and on flooded roads. Especially with wide tires, a high negative portion for water absorption is required to improve the protection against aquaplaning. Such operating conditions are, for example, Longer straight-ahead driving at a constant speed, even driving style, chassis geometry (lane / camber).
Higher wear on the pad spout
When unrolling the tire, the free-standing tread blocks in the ground contact surface are deformed. When in contact with the ground, they are compressed. When leaving the ground, the tires erase on the road to return to their original shape.
The result is higher wear on the blocked outlet. This wear image is more likely to occur at free-running wheel positions. Lightweight “sawtooth shape” is normal and has no noticeable effect on ride comfort. Distinctive sawtooth wear indicates special operating conditions incorrect air pressure, too high track values, low-wear inserts.
Expert tip: In order to achieve even wear when driving, the positions of the tires on the car should be replaced at regular intervals unless recommended otherwise by the vehicle manufacturer. This position change of the tires from the front to the rear should be timely, but at the latest when changing between summer and winter tires. This reduces the problem of sawtooth and maintains the good handling characteristics of the tires.
What is central wear?
This wear pattern can be found on drive wheels of high-torque vehicles. Even middle-class cars today have modern engines with high torques that can produce correspondingly high slip motions. Slip is the intensity of slippage between the tire and the road surface. At high speed, but also in the city with frequent traffic light stops and rapid acceleration, a strong torque cause’s increased central wear.
Expert tip: By a timely change of the car tires from the driven to the non-driven axle, the user can achieve a largely uniform abrasion. This has a positive effect on the service life of the tires. Always follow the recommendations of the vehicle manufacturer.
What is one-sided wear?
The most common cause of unilateral wear is an impermissible deviation from the given axle geometry. These errors creep over time z. B. by hard starting on curbs.
A lowering of the vehicle in conjunction with wide tires can negatively affect the wheel set. By changing lever arms (lower rim offset after retrofitting), the predetermined may Wheel alignment change during the journey. This can go unnoticed, since in the static state in the axis measurement, all values are still within the permissible tolerances. The result, however, may be increased uneven wear.
Wheel adjustment data not applicable to tuned cars
The part specified by the vehicle manufacturer applies to production vehicles and are not necessarily applicable to tuned cars. In case of wrong wheel position, the vehicle must be measured and the deviation corrected to avoid problems.