Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/75-17 | 245/70-17.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.7 (754.3) | 31 (787.5) | 1.31 (33.2) 4.4% |
| Width inches (mm) | 8.46 (215) | 9.65 (245) | 1.18 (30) 14% |
| Circum. inches (mm) | 93.3 (2369.7) | 97.4 (2474) | 4.11 (104.3) 4.4% |
| Sidewall Height inches (mm) | 6.35 (161.25) | 6.75 (171.5) | 0.4 (10.25) 6.4% |
| Revolutions per mile (km) | 679.13 (421.99) | 650.5 (404.2) | -28.63 (-17.79) -4.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.88 mph (33.6 km/h) |
| 25 mph (40.23 km/h) | 26.1 mph (42 km/h) |
| 30 mph (48.28 km/h) | 31.32 mph (50.41 km/h) |
| 35 mph (56.33 km/h) | 36.54 mph (58.81 km/h) |
| 40 mph (64.37 km/h) | 41.76 mph (67.21 km/h) |
| 45 mph (72.42 km/h) | 46.98 mph (75.61 km/h) |
| 50 mph (80.47 km/h) | 52.2 mph (84.01 km/h) |
| 55 mph (88.51 km/h) | 57.42 mph (92.41 km/h) |
| 60 mph (96.56 km/h) | 62.64 mph (100.81 km/h) |
| 65 mph (104.61 km/h) | 67.86 mph (109.21 km/h) |
| 70 mph (112.65 km/h) | 73.08 mph (117.61 km/h) |
| 75 mph (120.7 km/h) | 78.3 mph (126.01 km/h) |
| 80 mph (128.75 km/h) | 83.52 mph (134.41 km/h) |
| 85 mph (136.79 km/h) | 88.74 mph (142.82 km/h) |
| 90 mph (144.84 km/h) | 93.96 mph (151.22 km/h) |
| 95 mph (152.89 km/h) | 99.18 mph (159.62 km/h) |
| 100 mph (160.93 km/h) | 104.4 mph (168.02 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1655 | 1923 | 2071 | 2163 | 2261 | 2332 | 2409 | 2501 | 2628 | 2754 | 2895 | 3008 | 3212 | 3438 | 3614 | 3726 | 3790 | 4022 | 4346 | 5051 |
Better Fuel Economy Factory Ratios Increased Power
