Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 25/10-12 | 275/70-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25 (635) | 27.16 (689.8) | 2.16 (54.8) 8.6% |
| Width inches (mm) | 10 (254) | 10.83 (275) | 0.83 (21) 8.3% |
| Circum. inches (mm) | 78.54 (1994.91) | 85.32 (2167.07) | 6.78 (172.16) 8.6% |
| Sidewall Height inches (mm) | 6.5 (165.1) | 7.58 (192.5) | 1.08 (27.4) 16.6% |
| Revolutions per mile (km) | 806.72 (501.27) | 742.64 (461.45) | -64.09 (-39.82) -7.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.73 mph (34.96 km/h) |
| 25 mph (40.23 km/h) | 27.16 mph (43.71 km/h) |
| 30 mph (48.28 km/h) | 32.59 mph (52.45 km/h) |
| 35 mph (56.33 km/h) | 38.02 mph (61.19 km/h) |
| 40 mph (64.37 km/h) | 43.45 mph (69.93 km/h) |
| 45 mph (72.42 km/h) | 48.88 mph (78.67 km/h) |
| 50 mph (80.47 km/h) | 54.31 mph (87.41 km/h) |
| 55 mph (88.51 km/h) | 59.75 mph (96.15 km/h) |
| 60 mph (96.56 km/h) | 65.18 mph (104.89 km/h) |
| 65 mph (104.61 km/h) | 70.61 mph (113.64 km/h) |
| 70 mph (112.65 km/h) | 76.04 mph (122.38 km/h) |
| 75 mph (120.7 km/h) | 81.47 mph (131.12 km/h) |
| 80 mph (128.75 km/h) | 86.9 mph (139.86 km/h) |
| 85 mph (136.79 km/h) | 92.34 mph (148.6 km/h) |
| 90 mph (144.84 km/h) | 97.77 mph (157.34 km/h) |
| 95 mph (152.89 km/h) | 103.2 mph (166.08 km/h) |
| 100 mph (160.93 km/h) | 108.63 mph (174.82 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1890 | 2195 | 2364 | 2469 | 2581 | 2662 | 2750 | 2855 | 3000 | 3144 | 3305 | 3434 | 3667 | 3924 | 4126 | 4254 | 4327 | 4592 | 4962 | 5766 |
Better Fuel Economy Factory Ratios Increased Power
