Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/25-20 | 25/12.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.41 (645.5) | 25.01 (635.2) | -0.41 (-10.3) -1.6% |
| Width inches (mm) | 10.83 (275) | 12.52 (318) | 1.69 (43) 15.6% |
| Circum. inches (mm) | 79.84 (2027.9) | 78.56 (1995.54) | -1.27 (-32.36) -1.6% |
| Sidewall Height inches (mm) | 2.71 (68.75) | 2.5 (63.6) | -0.2 (-5.15) -7.5% |
| Revolutions per mile (km) | 793.6 (493.12) | 806.47 (501.12) | 12.87 (8) 1.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.68 mph (31.67 km/h) |
| 25 mph (40.23 km/h) | 24.6 mph (39.59 km/h) |
| 30 mph (48.28 km/h) | 29.52 mph (47.51 km/h) |
| 35 mph (56.33 km/h) | 34.44 mph (55.43 km/h) |
| 40 mph (64.37 km/h) | 39.36 mph (63.35 km/h) |
| 45 mph (72.42 km/h) | 44.28 mph (71.27 km/h) |
| 50 mph (80.47 km/h) | 49.2 mph (79.18 km/h) |
| 55 mph (88.51 km/h) | 54.12 mph (87.1 km/h) |
| 60 mph (96.56 km/h) | 59.04 mph (95.02 km/h) |
| 65 mph (104.61 km/h) | 63.96 mph (102.94 km/h) |
| 70 mph (112.65 km/h) | 68.88 mph (110.86 km/h) |
| 75 mph (120.7 km/h) | 73.8 mph (118.78 km/h) |
| 80 mph (128.75 km/h) | 78.72 mph (126.69 km/h) |
| 85 mph (136.79 km/h) | 83.64 mph (134.61 km/h) |
| 90 mph (144.84 km/h) | 88.56 mph (142.53 km/h) |
| 95 mph (152.89 km/h) | 93.48 mph (150.45 km/h) |
| 100 mph (160.93 km/h) | 98.4 mph (158.37 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2052 | 2384 | 2568 | 2681 | 2803 | 2891 | 2987 | 3100 | 3258 | 3415 | 3589 | 3729 | 3982 | 4262 | 4480 | 4620 | 4698 | 4987 | 5388 | 6262 |
Better Fuel Economy Factory Ratios Increased Power
