Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/78-14 | 215/78-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.13 (613) | 27.2 (691) | 3.07 (78) 12.7% |
| Width inches (mm) | 6.5 (165) | 8.46 (215) | 1.97 (50) 30.3% |
| Circum. inches (mm) | 75.82 (1925.8) | 85.47 (2170.84) | 9.65 (245.04) 12.7% |
| Sidewall Height inches (mm) | 5.07 (128.7) | 6.6 (167.7) | 1.54 (39) 30.3% |
| Revolutions per mile (km) | 835.68 (519.26) | 741.35 (460.65) | -94.33 (-58.61) -11.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.54 mph (36.28 km/h) |
| 25 mph (40.23 km/h) | 28.18 mph (45.35 km/h) |
| 30 mph (48.28 km/h) | 33.82 mph (54.42 km/h) |
| 35 mph (56.33 km/h) | 39.45 mph (63.49 km/h) |
| 40 mph (64.37 km/h) | 45.09 mph (72.57 km/h) |
| 45 mph (72.42 km/h) | 50.73 mph (81.64 km/h) |
| 50 mph (80.47 km/h) | 56.36 mph (90.71 km/h) |
| 55 mph (88.51 km/h) | 62 mph (99.78 km/h) |
| 60 mph (96.56 km/h) | 67.63 mph (108.85 km/h) |
| 65 mph (104.61 km/h) | 73.27 mph (117.92 km/h) |
| 70 mph (112.65 km/h) | 78.91 mph (126.99 km/h) |
| 75 mph (120.7 km/h) | 84.54 mph (136.06 km/h) |
| 80 mph (128.75 km/h) | 90.18 mph (145.13 km/h) |
| 85 mph (136.79 km/h) | 95.82 mph (154.2 km/h) |
| 90 mph (144.84 km/h) | 101.45 mph (163.27 km/h) |
| 95 mph (152.89 km/h) | 107.09 mph (172.34 km/h) |
| 100 mph (160.93 km/h) | 112.72 mph (181.41 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1887 | 2192 | 2360 | 2465 | 2577 | 2657 | 2746 | 2850 | 2994 | 3139 | 3300 | 3428 | 3661 | 3918 | 4118 | 4247 | 4319 | 4584 | 4953 | 5756 |
Better Fuel Economy Factory Ratios Increased Power
