Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/65-17 | 318/64-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.54 (750.3) | 33.03 (838.84) | 3.49 (88.54) 11.8% |
| Width inches (mm) | 9.65 (245) | 12.52 (318) | 2.87 (73) 29.8% |
| Circum. inches (mm) | 92.8 (2357.14) | 103.75 (2635.29) | 10.95 (278.16) 11.8% |
| Sidewall Height inches (mm) | 6.27 (159.25) | 8.01 (203.52) | 1.74 (44.27) 27.8% |
| Revolutions per mile (km) | 682.75 (424.24) | 610.69 (379.46) | -72.07 (-44.78) -10.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.36 mph (35.99 km/h) |
| 25 mph (40.23 km/h) | 27.95 mph (44.98 km/h) |
| 30 mph (48.28 km/h) | 33.54 mph (53.98 km/h) |
| 35 mph (56.33 km/h) | 39.13 mph (62.97 km/h) |
| 40 mph (64.37 km/h) | 44.72 mph (71.97 km/h) |
| 45 mph (72.42 km/h) | 50.31 mph (80.97 km/h) |
| 50 mph (80.47 km/h) | 55.9 mph (89.96 km/h) |
| 55 mph (88.51 km/h) | 61.49 mph (98.96 km/h) |
| 60 mph (96.56 km/h) | 67.08 mph (107.96 km/h) |
| 65 mph (104.61 km/h) | 72.67 mph (116.95 km/h) |
| 70 mph (112.65 km/h) | 78.26 mph (125.95 km/h) |
| 75 mph (120.7 km/h) | 83.85 mph (134.94 km/h) |
| 80 mph (128.75 km/h) | 89.44 mph (143.94 km/h) |
| 85 mph (136.79 km/h) | 95.03 mph (152.94 km/h) |
| 90 mph (144.84 km/h) | 100.62 mph (161.93 km/h) |
| 95 mph (152.89 km/h) | 106.21 mph (170.93 km/h) |
| 100 mph (160.93 km/h) | 111.8 mph (179.93 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1554 | 1805 | 1944 | 2030 | 2123 | 2189 | 2262 | 2348 | 2467 | 2586 | 2718 | 2824 | 3016 | 3227 | 3393 | 3498 | 3558 | 3776 | 4080 | 4742 |
Better Fuel Economy Factory Ratios Increased Power
