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Kuinka laskea Tire Size Compare

Mikä on Tire Size Compare?

Compares tire specifications and impact on speedometer accuracy, handling, and fuel economy. Validates tire compatibility.

Kaava

Speedometer error = circumference change %

Vaiheittainen opas

  1. 1Tire size: width, aspect ratio, wheel diameter (e.g., 225/50R17)
  2. 2Compare rolling circumference changes
  3. 3Speedometer error = circumference change %
  4. 4Check load and speed ratings match vehicle

Ratkaistut esimerkit

Syöte
P215/60 vs P225/55
Tulos
Diameter +0.8%

Yleisiä virheitä vältettäväksi

  • Not checking load rating change
  • Installing all-season when winter required (safety issue)

Usein kysytyt kysymykset

Can I use different tire sizes?

Minor differences (±3%) acceptable; larger changes affect speedometer, odometer, handling.

What happens with larger/smaller tires?

Larger: slower acceleration, improved efficiency but less response; smaller: opposite.

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Asetukset

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