Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/70-17.5 | 215/75-17.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31 (787.5) | 30.2 (767) | -0.81 (-20.5) -2.6% |
| Width inches (mm) | 9.65 (245) | 8.46 (215) | -1.18 (-30) -12.2% |
| Circum. inches (mm) | 97.4 (2474) | 94.87 (2409.6) | -2.54 (-64.4) -2.6% |
| Sidewall Height inches (mm) | 6.75 (171.5) | 6.35 (161.25) | -0.4 (-10.25) -6% |
| Revolutions per mile (km) | 650.5 (404.2) | 667.89 (415.01) | 17.39 (10.8) 2.7% |
215/75-17.5 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.48 mph (31.35 km/h) |
| 25 mph (40.23 km/h) | 24.35 mph (39.19 km/h) |
| 30 mph (48.28 km/h) | 29.22 mph (47.02 km/h) |
| 35 mph (56.33 km/h) | 34.09 mph (54.86 km/h) |
| 40 mph (64.37 km/h) | 38.96 mph (62.7 km/h) |
| 45 mph (72.42 km/h) | 43.83 mph (70.54 km/h) |
| 50 mph (80.47 km/h) | 48.7 mph (78.37 km/h) |
| 55 mph (88.51 km/h) | 53.57 mph (86.21 km/h) |
| 60 mph (96.56 km/h) | 58.44 mph (94.05 km/h) |
| 65 mph (104.61 km/h) | 63.31 mph (101.88 km/h) |
| 70 mph (112.65 km/h) | 68.18 mph (109.72 km/h) |
| 75 mph (120.7 km/h) | 73.05 mph (117.56 km/h) |
| 80 mph (128.75 km/h) | 77.92 mph (125.4 km/h) |
| 85 mph (136.79 km/h) | 82.79 mph (133.23 km/h) |
| 90 mph (144.84 km/h) | 87.66 mph (141.07 km/h) |
| 95 mph (152.89 km/h) | 92.53 mph (148.91 km/h) |
| 100 mph (160.93 km/h) | 97.4 mph (156.75 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1700 | 1974 | 2126 | 2220 | 2322 | 2394 | 2474 | 2568 | 2698 | 2828 | 2973 | 3088 | 3298 | 3529 | 3710 | 3826 | 3891 | 4130 | 4462 | 5186 |
Better Fuel Economy Factory Ratios Increased Power
