Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/25-20 | 245/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.61 (650.5) | 26.75 (679.5) | 1.14 (29) 4.5% |
| Width inches (mm) | 11.22 (285) | 9.65 (245) | -1.57 (-40) -14% |
| Circum. inches (mm) | 80.46 (2043.61) | 84.04 (2134.71) | 3.59 (91.11) 4.5% |
| Sidewall Height inches (mm) | 2.81 (71.25) | 3.38 (85.75) | 0.57 (14.5) 20.4% |
| Revolutions per mile (km) | 787.5 (489.33) | 753.89 (468.45) | -33.61 (-20.88) -4.3% |
245/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.89 mph (33.62 km/h) |
| 25 mph (40.23 km/h) | 26.11 mph (42.03 km/h) |
| 30 mph (48.28 km/h) | 31.34 mph (50.43 km/h) |
| 35 mph (56.33 km/h) | 36.56 mph (58.84 km/h) |
| 40 mph (64.37 km/h) | 41.78 mph (67.24 km/h) |
| 45 mph (72.42 km/h) | 47.01 mph (75.65 km/h) |
| 50 mph (80.47 km/h) | 52.23 mph (84.05 km/h) |
| 55 mph (88.51 km/h) | 57.45 mph (92.46 km/h) |
| 60 mph (96.56 km/h) | 62.67 mph (100.87 km/h) |
| 65 mph (104.61 km/h) | 67.9 mph (109.27 km/h) |
| 70 mph (112.65 km/h) | 73.12 mph (117.68 km/h) |
| 75 mph (120.7 km/h) | 78.34 mph (126.08 km/h) |
| 80 mph (128.75 km/h) | 83.57 mph (134.49 km/h) |
| 85 mph (136.79 km/h) | 88.79 mph (142.89 km/h) |
| 90 mph (144.84 km/h) | 94.01 mph (151.3 km/h) |
| 95 mph (152.89 km/h) | 99.24 mph (159.7 km/h) |
| 100 mph (160.93 km/h) | 104.46 mph (168.11 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1919 | 2229 | 2400 | 2506 | 2621 | 2702 | 2792 | 2898 | 3045 | 3192 | 3355 | 3486 | 3723 | 3984 | 4188 | 4319 | 4392 | 4662 | 5037 | 5854 |
Better Fuel Economy Factory Ratios Increased Power
