Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/60-20 | 365/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.85 (682) | 37.24 (946) | 10.39 (264) 38.7% |
| Width inches (mm) | 5.71 (145) | 14.37 (365) | 8.66 (220) 151.7% |
| Circum. inches (mm) | 84.35 (2142.57) | 117.01 (2971.95) | 32.65 (829.38) 38.7% |
| Sidewall Height inches (mm) | 3.43 (87) | 8.62 (219) | 5.2 (132) 151.7% |
| Revolutions per mile (km) | 751.13 (466.73) | 541.51 (336.48) | -209.62 (-130.25) -27.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 27.74 mph (44.65 km/h) |
| 25 mph (40.23 km/h) | 34.68 mph (55.81 km/h) |
| 30 mph (48.28 km/h) | 41.61 mph (66.97 km/h) |
| 35 mph (56.33 km/h) | 48.55 mph (78.13 km/h) |
| 40 mph (64.37 km/h) | 55.48 mph (89.29 km/h) |
| 45 mph (72.42 km/h) | 62.42 mph (100.45 km/h) |
| 50 mph (80.47 km/h) | 69.35 mph (111.62 km/h) |
| 55 mph (88.51 km/h) | 76.29 mph (122.78 km/h) |
| 60 mph (96.56 km/h) | 83.23 mph (133.94 km/h) |
| 65 mph (104.61 km/h) | 90.16 mph (145.1 km/h) |
| 70 mph (112.65 km/h) | 97.1 mph (156.26 km/h) |
| 75 mph (120.7 km/h) | 104.03 mph (167.42 km/h) |
| 80 mph (128.75 km/h) | 110.97 mph (178.59 km/h) |
| 85 mph (136.79 km/h) | 117.9 mph (189.75 km/h) |
| 90 mph (144.84 km/h) | 124.84 mph (200.91 km/h) |
| 95 mph (152.89 km/h) | 131.77 mph (212.07 km/h) |
| 100 mph (160.93 km/h) | 138.71 mph (223.23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1378 | 1601 | 1724 | 1800 | 1882 | 1941 | 2005 | 2082 | 2187 | 2293 | 2410 | 2504 | 2674 | 2862 | 3008 | 3102 | 3155 | 3348 | 3618 | 4205 |
Better Fuel Economy Factory Ratios Increased Power
