Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/75-17 | 30/10.5-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.7 (754.3) | 30.03 (762.88) | 0.34 (8.58) 1.1% |
| Width inches (mm) | 8.46 (215) | 10.51 (267) | 2.05 (52) 24.2% |
| Circum. inches (mm) | 93.3 (2369.7) | 94.36 (2396.66) | 1.06 (26.95) 1.1% |
| Sidewall Height inches (mm) | 6.35 (161.25) | 6.52 (165.54) | 0.17 (4.29) 2.7% |
| Revolutions per mile (km) | 679.13 (421.99) | 671.49 (417.25) | -7.64 (-4.75) -1.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.23 mph (32.55 km/h) |
| 25 mph (40.23 km/h) | 25.28 mph (40.69 km/h) |
| 30 mph (48.28 km/h) | 30.34 mph (48.83 km/h) |
| 35 mph (56.33 km/h) | 35.4 mph (56.97 km/h) |
| 40 mph (64.37 km/h) | 40.45 mph (65.11 km/h) |
| 45 mph (72.42 km/h) | 45.51 mph (73.24 km/h) |
| 50 mph (80.47 km/h) | 50.57 mph (81.38 km/h) |
| 55 mph (88.51 km/h) | 55.63 mph (89.52 km/h) |
| 60 mph (96.56 km/h) | 60.68 mph (97.66 km/h) |
| 65 mph (104.61 km/h) | 65.74 mph (105.8 km/h) |
| 70 mph (112.65 km/h) | 70.8 mph (113.94 km/h) |
| 75 mph (120.7 km/h) | 75.85 mph (122.07 km/h) |
| 80 mph (128.75 km/h) | 80.91 mph (130.21 km/h) |
| 85 mph (136.79 km/h) | 85.97 mph (138.35 km/h) |
| 90 mph (144.84 km/h) | 91.02 mph (146.49 km/h) |
| 95 mph (152.89 km/h) | 96.08 mph (154.63 km/h) |
| 100 mph (160.93 km/h) | 101.14 mph (162.77 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1709 | 1985 | 2138 | 2232 | 2334 | 2407 | 2487 | 2581 | 2712 | 2843 | 2989 | 3105 | 3316 | 3549 | 3730 | 3847 | 3912 | 4152 | 4487 | 5214 |
Better Fuel Economy Factory Ratios Increased Power
