Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/25-20 | 245/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.41 (645.5) | 26.75 (679.5) | 1.34 (34) 5.3% |
| Width inches (mm) | 10.83 (275) | 9.65 (245) | -1.18 (-30) -10.9% |
| Circum. inches (mm) | 79.84 (2027.9) | 84.04 (2134.71) | 4.21 (106.81) 5.3% |
| Sidewall Height inches (mm) | 2.71 (68.75) | 3.38 (85.75) | 0.67 (17) 24.7% |
| Revolutions per mile (km) | 793.6 (493.12) | 753.89 (468.45) | -39.71 (-24.67) -5% |
245/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.05 mph (33.88 km/h) |
| 25 mph (40.23 km/h) | 26.32 mph (42.35 km/h) |
| 30 mph (48.28 km/h) | 31.58 mph (50.82 km/h) |
| 35 mph (56.33 km/h) | 36.84 mph (59.29 km/h) |
| 40 mph (64.37 km/h) | 42.11 mph (67.76 km/h) |
| 45 mph (72.42 km/h) | 47.37 mph (76.24 km/h) |
| 50 mph (80.47 km/h) | 52.63 mph (84.71 km/h) |
| 55 mph (88.51 km/h) | 57.9 mph (93.18 km/h) |
| 60 mph (96.56 km/h) | 63.16 mph (101.65 km/h) |
| 65 mph (104.61 km/h) | 68.42 mph (110.12 km/h) |
| 70 mph (112.65 km/h) | 73.69 mph (118.59 km/h) |
| 75 mph (120.7 km/h) | 78.95 mph (127.06 km/h) |
| 80 mph (128.75 km/h) | 84.21 mph (135.53 km/h) |
| 85 mph (136.79 km/h) | 89.48 mph (144 km/h) |
| 90 mph (144.84 km/h) | 94.74 mph (152.47 km/h) |
| 95 mph (152.89 km/h) | 100 mph (160.94 km/h) |
| 100 mph (160.93 km/h) | 105.27 mph (169.41 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
