Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 25/10-12 | 270/65-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25 (635) | 25.82 (655.8) | 0.82 (20.8) 3.3% |
| Width inches (mm) | 10 (254) | 10.63 (270) | 0.63 (16) 6.3% |
| Circum. inches (mm) | 78.54 (1994.91) | 81.11 (2060.26) | 2.57 (65.35) 3.3% |
| Sidewall Height inches (mm) | 6.5 (165.1) | 6.91 (175.5) | 0.41 (10.4) 6.3% |
| Revolutions per mile (km) | 806.72 (501.27) | 781.14 (485.38) | -25.59 (-15.9) -3.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.66 mph (33.24 km/h) |
| 25 mph (40.23 km/h) | 25.82 mph (41.55 km/h) |
| 30 mph (48.28 km/h) | 30.98 mph (49.86 km/h) |
| 35 mph (56.33 km/h) | 36.15 mph (58.17 km/h) |
| 40 mph (64.37 km/h) | 41.31 mph (66.48 km/h) |
| 45 mph (72.42 km/h) | 46.47 mph (74.79 km/h) |
| 50 mph (80.47 km/h) | 51.64 mph (83.1 km/h) |
| 55 mph (88.51 km/h) | 56.8 mph (91.41 km/h) |
| 60 mph (96.56 km/h) | 61.97 mph (99.72 km/h) |
| 65 mph (104.61 km/h) | 67.13 mph (108.03 km/h) |
| 70 mph (112.65 km/h) | 72.29 mph (116.34 km/h) |
| 75 mph (120.7 km/h) | 77.46 mph (124.65 km/h) |
| 80 mph (128.75 km/h) | 82.62 mph (132.97 km/h) |
| 85 mph (136.79 km/h) | 87.78 mph (141.28 km/h) |
| 90 mph (144.84 km/h) | 92.95 mph (149.59 km/h) |
| 95 mph (152.89 km/h) | 98.11 mph (157.9 km/h) |
| 100 mph (160.93 km/h) | 103.28 mph (166.21 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1988 | 2309 | 2487 | 2597 | 2715 | 2800 | 2893 | 3003 | 3155 | 3307 | 3477 | 3612 | 3857 | 4128 | 4339 | 4475 | 4551 | 4830 | 5219 | 6065 |
Better Fuel Economy Factory Ratios Increased Power
