Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/45-17 | 315/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.33 (643.3) | 28.16 (715.3) | 2.83 (72) 11.2% |
| Width inches (mm) | 9.25 (235) | 12.4 (315) | 3.15 (80) 34% |
| Circum. inches (mm) | 79.57 (2020.99) | 88.47 (2247.18) | 8.91 (226.19) 11.2% |
| Sidewall Height inches (mm) | 4.16 (105.75) | 5.58 (141.75) | 1.42 (36) 34% |
| Revolutions per mile (km) | 796.32 (494.81) | 716.16 (445) | -80.15 (-49.81) -10.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.24 mph (35.79 km/h) |
| 25 mph (40.23 km/h) | 27.8 mph (44.74 km/h) |
| 30 mph (48.28 km/h) | 33.36 mph (53.68 km/h) |
| 35 mph (56.33 km/h) | 38.92 mph (62.63 km/h) |
| 40 mph (64.37 km/h) | 44.48 mph (71.58 km/h) |
| 45 mph (72.42 km/h) | 50.04 mph (80.53 km/h) |
| 50 mph (80.47 km/h) | 55.6 mph (89.47 km/h) |
| 55 mph (88.51 km/h) | 61.16 mph (98.42 km/h) |
| 60 mph (96.56 km/h) | 66.72 mph (107.37 km/h) |
| 65 mph (104.61 km/h) | 72.27 mph (116.32 km/h) |
| 70 mph (112.65 km/h) | 77.83 mph (125.26 km/h) |
| 75 mph (120.7 km/h) | 83.39 mph (134.21 km/h) |
| 80 mph (128.75 km/h) | 88.95 mph (143.16 km/h) |
| 85 mph (136.79 km/h) | 94.51 mph (152.1 km/h) |
| 90 mph (144.84 km/h) | 100.07 mph (161.05 km/h) |
| 95 mph (152.89 km/h) | 105.63 mph (170 km/h) |
| 100 mph (160.93 km/h) | 111.19 mph (178.95 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1822 | 2117 | 2280 | 2381 | 2489 | 2567 | 2652 | 2753 | 2893 | 3032 | 3187 | 3312 | 3536 | 3785 | 3978 | 4103 | 4172 | 4428 | 4785 | 5561 |
Better Fuel Economy Factory Ratios Increased Power
