Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/70-17.5 | 33.1/9.5-17.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31 (787.5) | 33.06 (839.74) | 2.06 (52.24) 6.6% |
| Width inches (mm) | 9.65 (245) | 9.49 (241) | -0.16 (-4) -1.6% |
| Circum. inches (mm) | 97.4 (2474) | 103.86 (2638.12) | 6.46 (164.12) 6.6% |
| Sidewall Height inches (mm) | 6.75 (171.5) | 7.78 (197.62) | 1.03 (26.12) 15.2% |
| Revolutions per mile (km) | 650.5 (404.2) | 610.03 (379.06) | -40.47 (-25.15) -6.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.33 mph (34.32 km/h) |
| 25 mph (40.23 km/h) | 26.66 mph (42.9 km/h) |
| 30 mph (48.28 km/h) | 31.99 mph (51.48 km/h) |
| 35 mph (56.33 km/h) | 37.32 mph (60.06 km/h) |
| 40 mph (64.37 km/h) | 42.65 mph (68.64 km/h) |
| 45 mph (72.42 km/h) | 47.99 mph (77.22 km/h) |
| 50 mph (80.47 km/h) | 53.32 mph (85.81 km/h) |
| 55 mph (88.51 km/h) | 58.65 mph (94.39 km/h) |
| 60 mph (96.56 km/h) | 63.98 mph (102.97 km/h) |
| 65 mph (104.61 km/h) | 69.31 mph (111.55 km/h) |
| 70 mph (112.65 km/h) | 74.64 mph (120.13 km/h) |
| 75 mph (120.7 km/h) | 79.98 mph (128.71 km/h) |
| 80 mph (128.75 km/h) | 85.31 mph (137.29 km/h) |
| 85 mph (136.79 km/h) | 90.64 mph (145.87 km/h) |
| 90 mph (144.84 km/h) | 95.97 mph (154.45 km/h) |
| 95 mph (152.89 km/h) | 101.3 mph (163.03 km/h) |
| 100 mph (160.93 km/h) | 106.63 mph (171.61 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1552 | 1803 | 1942 | 2028 | 2121 | 2187 | 2259 | 2345 | 2464 | 2583 | 2715 | 2821 | 3012 | 3224 | 3389 | 3495 | 3554 | 3772 | 4076 | 4737 |
Better Fuel Economy Factory Ratios Increased Power
