Cum se calculează Tire Size Compare
Ce este Tire Size Compare?
Compares tire specifications and impact on speedometer accuracy, handling, and fuel economy. Validates tire compatibility.
Formulă
Speedometer error = circumference change %
Ghid pas cu pas
- 1Tire size: width, aspect ratio, wheel diameter (e.g., 225/50R17)
- 2Compare rolling circumference changes
- 3Speedometer error = circumference change %
- 4Check load and speed ratings match vehicle
Exemple rezolvate
Intrare
P215/60 vs P225/55
Rezultat
Diameter +0.8%
Greșeli frecvente de evitat
- ✕Not checking load rating change
- ✕Installing all-season when winter required (safety issue)
Întrebări frecvente
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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