Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/80-17 | 145/60-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.13 (663.8) | 23.85 (605.8) | -2.28 (-58) -8.7% |
| Width inches (mm) | 5.71 (145) | 5.71 (145) | 0 (0) 0% |
| Circum. inches (mm) | 82.1 (2085.39) | 74.93 (1903.18) | -7.17 (-182.21) -8.7% |
| Sidewall Height inches (mm) | 4.57 (116) | 3.43 (87) | -1.14 (-29) -25% |
| Revolutions per mile (km) | 771.72 (479.53) | 845.61 (525.44) | 73.89 (45.91) 9.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.25 mph (29.37 km/h) |
| 25 mph (40.23 km/h) | 22.82 mph (36.72 km/h) |
| 30 mph (48.28 km/h) | 27.38 mph (44.06 km/h) |
| 35 mph (56.33 km/h) | 31.94 mph (51.41 km/h) |
| 40 mph (64.37 km/h) | 36.5 mph (58.75 km/h) |
| 45 mph (72.42 km/h) | 41.07 mph (66.09 km/h) |
| 50 mph (80.47 km/h) | 45.63 mph (73.44 km/h) |
| 55 mph (88.51 km/h) | 50.19 mph (80.78 km/h) |
| 60 mph (96.56 km/h) | 54.76 mph (88.12 km/h) |
| 65 mph (104.61 km/h) | 59.32 mph (95.47 km/h) |
| 70 mph (112.65 km/h) | 63.88 mph (102.81 km/h) |
| 75 mph (120.7 km/h) | 68.45 mph (110.15 km/h) |
| 80 mph (128.75 km/h) | 73.01 mph (117.5 km/h) |
| 85 mph (136.79 km/h) | 77.57 mph (124.84 km/h) |
| 90 mph (144.84 km/h) | 82.14 mph (132.19 km/h) |
| 95 mph (152.89 km/h) | 86.7 mph (139.53 km/h) |
| 100 mph (160.93 km/h) | 91.26 mph (146.87 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2152 | 2500 | 2692 | 2811 | 2939 | 3031 | 3132 | 3251 | 3416 | 3580 | 3764 | 3910 | 4176 | 4469 | 4698 | 4844 | 4927 | 5229 | 5650 | 6566 |
Better Fuel Economy Factory Ratios Increased Power
