Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/60-20 | 205/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.85 (682) | 29.69 (754) | 2.83 (72) 10.6% |
| Width inches (mm) | 5.71 (145) | 8.07 (205) | 2.36 (60) 41.4% |
| Circum. inches (mm) | 84.35 (2142.57) | 93.26 (2368.76) | 8.91 (226.19) 10.6% |
| Sidewall Height inches (mm) | 3.43 (87) | 4.84 (123) | 1.42 (36) 41.4% |
| Revolutions per mile (km) | 751.13 (466.73) | 679.4 (422.16) | -71.73 (-44.57) -9.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.11 mph (35.58 km/h) |
| 25 mph (40.23 km/h) | 27.64 mph (44.48 km/h) |
| 30 mph (48.28 km/h) | 33.17 mph (53.38 km/h) |
| 35 mph (56.33 km/h) | 38.7 mph (62.27 km/h) |
| 40 mph (64.37 km/h) | 44.22 mph (71.17 km/h) |
| 45 mph (72.42 km/h) | 49.75 mph (80.07 km/h) |
| 50 mph (80.47 km/h) | 55.28 mph (88.96 km/h) |
| 55 mph (88.51 km/h) | 60.81 mph (97.86 km/h) |
| 60 mph (96.56 km/h) | 66.33 mph (106.75 km/h) |
| 65 mph (104.61 km/h) | 71.86 mph (115.65 km/h) |
| 70 mph (112.65 km/h) | 77.39 mph (124.55 km/h) |
| 75 mph (120.7 km/h) | 82.92 mph (133.44 km/h) |
| 80 mph (128.75 km/h) | 88.45 mph (142.34 km/h) |
| 85 mph (136.79 km/h) | 93.97 mph (151.24 km/h) |
| 90 mph (144.84 km/h) | 99.5 mph (160.13 km/h) |
| 95 mph (152.89 km/h) | 105.03 mph (169.03 km/h) |
| 100 mph (160.93 km/h) | 110.56 mph (177.92 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1729 | 2009 | 2163 | 2259 | 2362 | 2435 | 2516 | 2612 | 2744 | 2877 | 3024 | 3142 | 3355 | 3590 | 3774 | 3892 | 3958 | 4201 | 4539 | 5275 |
Better Fuel Economy Factory Ratios Increased Power
