Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 25/10-12 | 305/55-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25 (635) | 25.21 (640.3) | 0.21 (5.3) 0.8% |
| Width inches (mm) | 10 (254) | 12.01 (305) | 2.01 (51) 20.1% |
| Circum. inches (mm) | 78.54 (1994.91) | 79.2 (2011.56) | 0.66 (16.65) 0.8% |
| Sidewall Height inches (mm) | 6.5 (165.1) | 6.6 (167.75) | 0.1 (2.65) 1.6% |
| Revolutions per mile (km) | 806.72 (501.27) | 800.05 (497.13) | -6.68 (-4.15) -0.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.17 mph (32.46 km/h) |
| 25 mph (40.23 km/h) | 25.21 mph (40.57 km/h) |
| 30 mph (48.28 km/h) | 30.25 mph (48.68 km/h) |
| 35 mph (56.33 km/h) | 35.29 mph (56.8 km/h) |
| 40 mph (64.37 km/h) | 40.33 mph (64.91 km/h) |
| 45 mph (72.42 km/h) | 45.38 mph (73.03 km/h) |
| 50 mph (80.47 km/h) | 50.42 mph (81.14 km/h) |
| 55 mph (88.51 km/h) | 55.46 mph (89.25 km/h) |
| 60 mph (96.56 km/h) | 60.5 mph (97.37 km/h) |
| 65 mph (104.61 km/h) | 65.54 mph (105.48 km/h) |
| 70 mph (112.65 km/h) | 70.58 mph (113.59 km/h) |
| 75 mph (120.7 km/h) | 75.63 mph (121.71 km/h) |
| 80 mph (128.75 km/h) | 80.67 mph (129.82 km/h) |
| 85 mph (136.79 km/h) | 85.71 mph (137.94 km/h) |
| 90 mph (144.84 km/h) | 90.75 mph (146.05 km/h) |
| 95 mph (152.89 km/h) | 95.79 mph (154.16 km/h) |
| 100 mph (160.93 km/h) | 100.83 mph (162.28 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2036 | 2365 | 2547 | 2660 | 2781 | 2868 | 2963 | 3076 | 3232 | 3388 | 3561 | 3699 | 3951 | 4228 | 4444 | 4583 | 4661 | 4947 | 5345 | 6212 |
Better Fuel Economy Factory Ratios Increased Power
