Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/40-17 | 275/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.92 (683.8) | 25.66 (651.8) | -1.26 (-32) -4.7% |
| Width inches (mm) | 12.4 (315) | 10.83 (275) | -1.57 (-40) -12.7% |
| Circum. inches (mm) | 84.58 (2148.22) | 80.62 (2047.69) | -3.96 (-100.53) -4.7% |
| Sidewall Height inches (mm) | 4.96 (126) | 4.33 (110) | -0.63 (-16) -12.7% |
| Revolutions per mile (km) | 749.15 (465.5) | 785.93 (488.35) | 36.78 (22.85) 4.9% |
275/40-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.06 mph (30.68 km/h) |
| 25 mph (40.23 km/h) | 23.83 mph (38.35 km/h) |
| 30 mph (48.28 km/h) | 28.6 mph (46.02 km/h) |
| 35 mph (56.33 km/h) | 33.36 mph (53.69 km/h) |
| 40 mph (64.37 km/h) | 38.13 mph (61.36 km/h) |
| 45 mph (72.42 km/h) | 42.89 mph (69.03 km/h) |
| 50 mph (80.47 km/h) | 47.66 mph (76.7 km/h) |
| 55 mph (88.51 km/h) | 52.43 mph (84.37 km/h) |
| 60 mph (96.56 km/h) | 57.19 mph (92.04 km/h) |
| 65 mph (104.61 km/h) | 61.96 mph (99.71 km/h) |
| 70 mph (112.65 km/h) | 66.72 mph (107.38 km/h) |
| 75 mph (120.7 km/h) | 71.49 mph (115.05 km/h) |
| 80 mph (128.75 km/h) | 76.26 mph (122.72 km/h) |
| 85 mph (136.79 km/h) | 81.02 mph (130.39 km/h) |
| 90 mph (144.84 km/h) | 85.79 mph (138.06 km/h) |
| 95 mph (152.89 km/h) | 90.55 mph (145.73 km/h) |
| 100 mph (160.93 km/h) | 95.32 mph (153.4 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2000 | 2323 | 2502 | 2613 | 2732 | 2817 | 2911 | 3021 | 3175 | 3328 | 3498 | 3634 | 3881 | 4153 | 4366 | 4502 | 4579 | 4860 | 5251 | 6102 |
Better Fuel Economy Factory Ratios Increased Power
