Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/65-14 | 165/80-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.42 (544.1) | 24.39 (619.6) | 2.97 (75.5) 13.9% |
| Width inches (mm) | 5.71 (145) | 6.5 (165) | 0.79 (20) 13.8% |
| Circum. inches (mm) | 67.3 (1709.34) | 76.64 (1946.53) | 9.34 (237.19) 13.9% |
| Sidewall Height inches (mm) | 3.71 (94.25) | 5.2 (132) | 1.49 (37.75) 40.1% |
| Revolutions per mile (km) | 941.5 (585.02) | 826.78 (513.73) | -114.72 (-71.29) -12.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.78 mph (36.65 km/h) |
| 25 mph (40.23 km/h) | 28.47 mph (45.82 km/h) |
| 30 mph (48.28 km/h) | 34.16 mph (54.98 km/h) |
| 35 mph (56.33 km/h) | 39.86 mph (64.14 km/h) |
| 40 mph (64.37 km/h) | 45.55 mph (73.31 km/h) |
| 45 mph (72.42 km/h) | 51.24 mph (82.47 km/h) |
| 50 mph (80.47 km/h) | 56.94 mph (91.63 km/h) |
| 55 mph (88.51 km/h) | 62.63 mph (100.8 km/h) |
| 60 mph (96.56 km/h) | 68.33 mph (109.96 km/h) |
| 65 mph (104.61 km/h) | 74.02 mph (119.12 km/h) |
| 70 mph (112.65 km/h) | 79.71 mph (128.29 km/h) |
| 75 mph (120.7 km/h) | 85.41 mph (137.45 km/h) |
| 80 mph (128.75 km/h) | 91.1 mph (146.61 km/h) |
| 85 mph (136.79 km/h) | 96.79 mph (155.78 km/h) |
| 90 mph (144.84 km/h) | 102.49 mph (164.94 km/h) |
| 95 mph (152.89 km/h) | 108.18 mph (174.1 km/h) |
| 100 mph (160.93 km/h) | 113.88 mph (183.27 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2104 | 2444 | 2632 | 2749 | 2874 | 2963 | 3062 | 3178 | 3340 | 3501 | 3680 | 3823 | 4083 | 4369 | 4593 | 4736 | 4817 | 5112 | 5524 | 6419 |
Better Fuel Economy Factory Ratios Increased Power
