Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/80-12 | 255/75-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.91 (632.8) | 29.06 (738.1) | 4.15 (105.3) 16.6% |
| Width inches (mm) | 8.07 (205) | 10.04 (255) | 1.97 (50) 24.4% |
| Circum. inches (mm) | 78.27 (1988) | 91.29 (2318.81) | 13.02 (330.81) 16.6% |
| Sidewall Height inches (mm) | 6.46 (164) | 7.53 (191.25) | 1.07 (27.25) 16.6% |
| Revolutions per mile (km) | 809.53 (503.02) | 694.04 (431.25) | -115.49 (-71.76) -14.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.33 mph (37.54 km/h) |
| 25 mph (40.23 km/h) | 29.16 mph (46.93 km/h) |
| 30 mph (48.28 km/h) | 34.99 mph (56.31 km/h) |
| 35 mph (56.33 km/h) | 40.82 mph (65.7 km/h) |
| 40 mph (64.37 km/h) | 46.66 mph (75.09 km/h) |
| 45 mph (72.42 km/h) | 52.49 mph (84.47 km/h) |
| 50 mph (80.47 km/h) | 58.32 mph (93.86 km/h) |
| 55 mph (88.51 km/h) | 64.15 mph (103.24 km/h) |
| 60 mph (96.56 km/h) | 69.98 mph (112.63 km/h) |
| 65 mph (104.61 km/h) | 75.82 mph (122.01 km/h) |
| 70 mph (112.65 km/h) | 81.65 mph (131.4 km/h) |
| 75 mph (120.7 km/h) | 87.48 mph (140.79 km/h) |
| 80 mph (128.75 km/h) | 93.31 mph (150.17 km/h) |
| 85 mph (136.79 km/h) | 99.14 mph (159.56 km/h) |
| 90 mph (144.84 km/h) | 104.98 mph (168.94 km/h) |
| 95 mph (152.89 km/h) | 110.81 mph (178.33 km/h) |
| 100 mph (160.93 km/h) | 116.64 mph (187.71 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1766 | 2052 | 2210 | 2307 | 2413 | 2488 | 2570 | 2668 | 2803 | 2939 | 3089 | 3209 | 3427 | 3668 | 3856 | 3976 | 4043 | 4291 | 4637 | 5389 |
Better Fuel Economy Factory Ratios Increased Power
