Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/40-17 | 265/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.92 (683.8) | 25.35 (643.8) | -1.57 (-40) -5.8% |
| Width inches (mm) | 12.4 (315) | 10.43 (265) | -1.97 (-50) -15.9% |
| Circum. inches (mm) | 84.58 (2148.22) | 79.63 (2022.56) | -4.95 (-125.66) -5.8% |
| Sidewall Height inches (mm) | 4.96 (126) | 4.17 (106) | -0.79 (-20) -15.9% |
| Revolutions per mile (km) | 749.15 (465.5) | 795.7 (494.42) | 46.55 (28.92) 6.2% |
265/40-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.83 mph (30.3 km/h) |
| 25 mph (40.23 km/h) | 23.54 mph (37.88 km/h) |
| 30 mph (48.28 km/h) | 28.25 mph (45.46 km/h) |
| 35 mph (56.33 km/h) | 32.95 mph (53.03 km/h) |
| 40 mph (64.37 km/h) | 37.66 mph (60.61 km/h) |
| 45 mph (72.42 km/h) | 42.37 mph (68.18 km/h) |
| 50 mph (80.47 km/h) | 47.08 mph (75.76 km/h) |
| 55 mph (88.51 km/h) | 51.78 mph (83.34 km/h) |
| 60 mph (96.56 km/h) | 56.49 mph (90.91 km/h) |
| 65 mph (104.61 km/h) | 61.2 mph (98.49 km/h) |
| 70 mph (112.65 km/h) | 65.91 mph (106.06 km/h) |
| 75 mph (120.7 km/h) | 70.61 mph (113.64 km/h) |
| 80 mph (128.75 km/h) | 75.32 mph (121.22 km/h) |
| 85 mph (136.79 km/h) | 80.03 mph (128.79 km/h) |
| 90 mph (144.84 km/h) | 84.74 mph (136.37 km/h) |
| 95 mph (152.89 km/h) | 89.44 mph (143.94 km/h) |
| 100 mph (160.93 km/h) | 94.15 mph (151.52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 2352 | 2533 | 2645 | 2766 | 2852 | 2947 | 3059 | 3214 | 3369 | 3541 | 3679 | 3929 | 4205 | 4420 | 4558 | 4636 | 4920 | 5316 | 6178 |
Better Fuel Economy Factory Ratios Increased Power
