Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 25/10-12 | 185/80-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25 (635) | 23.65 (600.8) | -1.35 (-34.2) -5.4% |
| Width inches (mm) | 10 (254) | 7.28 (185) | -2.72 (-69) -27.2% |
| Circum. inches (mm) | 78.54 (1994.91) | 74.31 (1887.47) | -4.23 (-107.44) -5.4% |
| Sidewall Height inches (mm) | 6.5 (165.1) | 5.83 (148) | -0.67 (-17.1) -10.4% |
| Revolutions per mile (km) | 806.72 (501.27) | 852.65 (529.81) | 45.92 (28.53) 5.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.92 mph (30.45 km/h) |
| 25 mph (40.23 km/h) | 23.65 mph (38.07 km/h) |
| 30 mph (48.28 km/h) | 28.38 mph (45.68 km/h) |
| 35 mph (56.33 km/h) | 33.11 mph (53.29 km/h) |
| 40 mph (64.37 km/h) | 37.85 mph (60.91 km/h) |
| 45 mph (72.42 km/h) | 42.58 mph (68.52 km/h) |
| 50 mph (80.47 km/h) | 47.31 mph (76.13 km/h) |
| 55 mph (88.51 km/h) | 52.04 mph (83.75 km/h) |
| 60 mph (96.56 km/h) | 56.77 mph (91.36 km/h) |
| 65 mph (104.61 km/h) | 61.5 mph (98.97 km/h) |
| 70 mph (112.65 km/h) | 66.23 mph (106.59 km/h) |
| 75 mph (120.7 km/h) | 70.96 mph (114.2 km/h) |
| 80 mph (128.75 km/h) | 75.69 mph (121.81 km/h) |
| 85 mph (136.79 km/h) | 80.42 mph (129.43 km/h) |
| 90 mph (144.84 km/h) | 85.15 mph (137.04 km/h) |
| 95 mph (152.89 km/h) | 89.88 mph (144.65 km/h) |
| 100 mph (160.93 km/h) | 94.61 mph (152.27 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2170 | 2521 | 2715 | 2835 | 2964 | 3056 | 3158 | 3278 | 3444 | 3610 | 3795 | 3943 | 4210 | 4506 | 4737 | 4884 | 4968 | 5272 | 5697 | 6620 |
Better Fuel Economy Factory Ratios Increased Power
