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Home >> Porsche >> 2016 >> Cayman Base, Standard Trans >> Repair and Diagnosis >> Suspension >> Rear Suspension >> 44 - Wheels, Tires, Suspension Alignment -- (981) BOXSTER/CAYMAN >> WM 440594 Balancing/Optimizing Wheels (All Models) >> Explanation Of Terms >> 1st Harmonic

1st Harmonic

The changes in radial force variation can be broken down mathematically into individual variations. Porsche uses the value of the 1st Harmonic Variation (basic variation) to assess the tire from the point of view of rigidity. The 1st Harmonic Variation relates to the changes in radial force that cause the strongest vibrations. Other harmonic variations (2nd - 4th Harmonic) can also be seen in the changes in radial force. These relate to the changes in radial force that cause weaker vibrations.

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