Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 25/10-12 | 27/10-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25 (635) | 27 (685.8) | 2 (50.8) 8% |
| Width inches (mm) | 10 (254) | 10 (254) | 0 (0) 0% |
| Circum. inches (mm) | 78.54 (1994.91) | 84.82 (2154.5) | 6.28 (159.59) 8% |
| Sidewall Height inches (mm) | 6.5 (165.1) | 7.5 (190.5) | 1 (25.4) 15.4% |
| Revolutions per mile (km) | 806.72 (501.27) | 746.97 (464.14) | -59.76 (-37.13) -7.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.6 mph (34.76 km/h) |
| 25 mph (40.23 km/h) | 27 mph (43.45 km/h) |
| 30 mph (48.28 km/h) | 32.4 mph (52.14 km/h) |
| 35 mph (56.33 km/h) | 37.8 mph (60.83 km/h) |
| 40 mph (64.37 km/h) | 43.2 mph (69.52 km/h) |
| 45 mph (72.42 km/h) | 48.6 mph (78.21 km/h) |
| 50 mph (80.47 km/h) | 54 mph (86.9 km/h) |
| 55 mph (88.51 km/h) | 59.4 mph (95.6 km/h) |
| 60 mph (96.56 km/h) | 64.8 mph (104.29 km/h) |
| 65 mph (104.61 km/h) | 70.2 mph (112.98 km/h) |
| 70 mph (112.65 km/h) | 75.6 mph (121.67 km/h) |
| 75 mph (120.7 km/h) | 81 mph (130.36 km/h) |
| 80 mph (128.75 km/h) | 86.4 mph (139.05 km/h) |
| 85 mph (136.79 km/h) | 91.8 mph (147.74 km/h) |
| 90 mph (144.84 km/h) | 97.2 mph (156.43 km/h) |
| 95 mph (152.89 km/h) | 102.6 mph (165.12 km/h) |
| 100 mph (160.93 km/h) | 108 mph (173.81 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1901 | 2208 | 2378 | 2483 | 2597 | 2677 | 2766 | 2872 | 3017 | 3163 | 3325 | 3454 | 3689 | 3947 | 4150 | 4279 | 4352 | 4619 | 4991 | 5800 |
Better Fuel Economy Factory Ratios Increased Power
