Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/65-16 | 318/72-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.56 (750.9) | 35.03 (889.72) | 5.47 (138.82) 18.5% |
| Width inches (mm) | 10.43 (265) | 12.52 (318) | 2.09 (53) 20% |
| Circum. inches (mm) | 92.87 (2359.02) | 110.04 (2795.14) | 17.17 (436.12) 18.5% |
| Sidewall Height inches (mm) | 6.78 (172.25) | 9.01 (228.96) | 2.23 (56.71) 32.9% |
| Revolutions per mile (km) | 682.21 (423.9) | 575.77 (357.76) | -106.44 (-66.14) -15.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.7 mph (38.14 km/h) |
| 25 mph (40.23 km/h) | 29.62 mph (47.67 km/h) |
| 30 mph (48.28 km/h) | 35.55 mph (57.21 km/h) |
| 35 mph (56.33 km/h) | 41.47 mph (66.74 km/h) |
| 40 mph (64.37 km/h) | 47.39 mph (76.27 km/h) |
| 45 mph (72.42 km/h) | 53.32 mph (85.81 km/h) |
| 50 mph (80.47 km/h) | 59.24 mph (95.34 km/h) |
| 55 mph (88.51 km/h) | 65.17 mph (104.88 km/h) |
| 60 mph (96.56 km/h) | 71.09 mph (114.41 km/h) |
| 65 mph (104.61 km/h) | 77.02 mph (123.95 km/h) |
| 70 mph (112.65 km/h) | 82.94 mph (133.48 km/h) |
| 75 mph (120.7 km/h) | 88.87 mph (143.02 km/h) |
| 80 mph (128.75 km/h) | 94.79 mph (152.55 km/h) |
| 85 mph (136.79 km/h) | 100.71 mph (162.08 km/h) |
| 90 mph (144.84 km/h) | 106.64 mph (171.62 km/h) |
| 95 mph (152.89 km/h) | 112.56 mph (181.15 km/h) |
| 100 mph (160.93 km/h) | 118.49 mph (190.69 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1465 | 1702 | 1833 | 1914 | 2001 | 2064 | 2132 | 2213 | 2326 | 2438 | 2563 | 2662 | 2843 | 3043 | 3199 | 3298 | 3354 | 3560 | 3847 | 4470 |
Better Fuel Economy Factory Ratios Increased Power
