Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/55-17 | 245/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.31 (668.3) | 26.75 (679.5) | 0.44 (11.2) 1.7% |
| Width inches (mm) | 8.46 (215) | 9.65 (245) | 1.18 (30) 14% |
| Circum. inches (mm) | 82.66 (2099.53) | 84.04 (2134.71) | 1.39 (35.19) 1.7% |
| Sidewall Height inches (mm) | 4.66 (118.25) | 3.38 (85.75) | -1.28 (-32.5) -27.5% |
| Revolutions per mile (km) | 766.53 (476.3) | 753.89 (468.45) | -12.63 (-7.85) -1.6% |
245/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.34 mph (32.73 km/h) |
| 25 mph (40.23 km/h) | 25.42 mph (40.91 km/h) |
| 30 mph (48.28 km/h) | 30.5 mph (49.09 km/h) |
| 35 mph (56.33 km/h) | 35.59 mph (57.27 km/h) |
| 40 mph (64.37 km/h) | 40.67 mph (65.45 km/h) |
| 45 mph (72.42 km/h) | 45.75 mph (73.63 km/h) |
| 50 mph (80.47 km/h) | 50.84 mph (81.82 km/h) |
| 55 mph (88.51 km/h) | 55.92 mph (90 km/h) |
| 60 mph (96.56 km/h) | 61.01 mph (98.18 km/h) |
| 65 mph (104.61 km/h) | 66.09 mph (106.36 km/h) |
| 70 mph (112.65 km/h) | 71.17 mph (114.54 km/h) |
| 75 mph (120.7 km/h) | 76.26 mph (122.72 km/h) |
| 80 mph (128.75 km/h) | 81.34 mph (130.91 km/h) |
| 85 mph (136.79 km/h) | 86.42 mph (139.09 km/h) |
| 90 mph (144.84 km/h) | 91.51 mph (147.27 km/h) |
| 95 mph (152.89 km/h) | 96.59 mph (155.45 km/h) |
| 100 mph (160.93 km/h) | 101.68 mph (163.63 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
