Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/65-14 | 205/80-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.42 (544.1) | 26.91 (683.6) | 5.49 (139.5) 25.6% |
| Width inches (mm) | 5.71 (145) | 8.07 (205) | 2.36 (60) 41.4% |
| Circum. inches (mm) | 67.3 (1709.34) | 84.55 (2147.59) | 17.25 (438.25) 25.6% |
| Sidewall Height inches (mm) | 3.71 (94.25) | 6.46 (164) | 2.75 (69.75) 74% |
| Revolutions per mile (km) | 941.5 (585.02) | 749.37 (465.64) | -192.13 (-119.38) -20.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.13 mph (40.44 km/h) |
| 25 mph (40.23 km/h) | 31.41 mph (50.55 km/h) |
| 30 mph (48.28 km/h) | 37.69 mph (60.66 km/h) |
| 35 mph (56.33 km/h) | 43.97 mph (70.77 km/h) |
| 40 mph (64.37 km/h) | 50.26 mph (80.88 km/h) |
| 45 mph (72.42 km/h) | 56.54 mph (90.99 km/h) |
| 50 mph (80.47 km/h) | 62.82 mph (101.1 km/h) |
| 55 mph (88.51 km/h) | 69.1 mph (111.21 km/h) |
| 60 mph (96.56 km/h) | 75.38 mph (121.32 km/h) |
| 65 mph (104.61 km/h) | 81.67 mph (131.43 km/h) |
| 70 mph (112.65 km/h) | 87.95 mph (141.54 km/h) |
| 75 mph (120.7 km/h) | 94.23 mph (151.65 km/h) |
| 80 mph (128.75 km/h) | 100.51 mph (161.76 km/h) |
| 85 mph (136.79 km/h) | 106.79 mph (171.87 km/h) |
| 90 mph (144.84 km/h) | 113.07 mph (181.98 km/h) |
| 95 mph (152.89 km/h) | 119.36 mph (192.09 km/h) |
| 100 mph (160.93 km/h) | 125.64 mph (202.2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1907 | 2215 | 2386 | 2491 | 2605 | 2686 | 2775 | 2881 | 3027 | 3173 | 3335 | 3465 | 3700 | 3960 | 4163 | 4293 | 4366 | 4634 | 5007 | 5818 |
Better Fuel Economy Factory Ratios Increased Power
