Compare two tire sizes and see the impact on diameter, speedometer, and clearance
Overall Diameter
24.97"
634 mm
Sidewall Height
101 mm
Circumference
78.5"
Overall Diameter
25.33"
643 mm
Sidewall Height
106 mm
Circumference
79.6"
Diameter Difference
+0.35"
Speedometer Error
+1.42%
New tire is larger, actual speed is higher than indicated
| Indicated (mph) | Actual (mph) |
|---|---|
| 30 | 30.4 |
| 45 | 45.6 |
| 60 | 60.9 |
| 75 | 76.1 |
| 90 | 91.3 |
