Extended parking can leave surface rust on brake rotors. When corrosion becomes heavy, rotor replacement may be the better option.
Frequent in-town or rush-hour driving also puts more heat into the brakes because the vehicle stops repeatedly. Keeping more following distance can reduce unnecessary braking and avoid riding the brake pedal. Uneven lug nut tightening can also clamp the wheel and rotor inconsistently against the hub.
A rotor condition measuring more than five thousandths, or .005, may become noticeable when you apply the brakes.
Pedal pulsation happens when the pads do not contact the rotor evenly through each rotation. Uneven pad deposits or a rotor sitting against a dirty hub face can create that variation. As the high and low areas pass between the pads, hydraulic pressure changes can travel backward through the braking system, which you feel as a push or pulse through the brake pedal.
At higher speeds, rotor-related variation may also produce shaking or vibration through the steering wheel during braking. Front brake problems tend to transfer more vibration through the steering linkage.
In stronger cases, the whole vehicle may shake or shudder during a stop. When the problem is limited to the rear brakes, you may notice the vibration more through the seat or from the back of the vehicle.
Stress cracks can appear as small, flake-like cracks across the rotor surface. Visible cracking can indicate excessive heat or substantial wear.
Machining, also called turning, removes metal from the rotor, leaving it thinner and reducing the amount of material available to absorb and dissipate heat. A rotor that has already been machined close to its minimum specification may no longer have sufficient remaining material. Replacement is the recommended option.
Rotor condition and remaining thickness help determine whether replacement is appropriate. Surface corrosion, cracking, or limited remaining material may make replacement the better option.
R1 Concepts offers OE-quality replacement brake rotors at www.r1concepts.com .
When rotor problems cause pulsation, vibration, cracking, or corrosion, our R1 Concepts replacement rotors are worth considering. They provide an OE-quality replacement option when existing rotors lack sufficient material or replacement is otherwise the better choice.
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