Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/50-17 | 275/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.04 (686.8) | 25.66 (651.8) | -1.38 (-35) -5.1% |
| Width inches (mm) | 10.04 (255) | 10.83 (275) | 0.79 (20) 7.8% |
| Circum. inches (mm) | 84.95 (2157.65) | 80.62 (2047.69) | -4.33 (-109.96) -5.1% |
| Sidewall Height inches (mm) | 5.02 (127.5) | 4.33 (110) | -0.69 (-17.5) -13.7% |
| Revolutions per mile (km) | 745.88 (463.47) | 785.93 (488.35) | 40.05 (24.89) 5.4% |
275/40-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.98 mph (30.55 km/h) |
| 25 mph (40.23 km/h) | 23.73 mph (38.18 km/h) |
| 30 mph (48.28 km/h) | 28.47 mph (45.82 km/h) |
| 35 mph (56.33 km/h) | 33.22 mph (53.46 km/h) |
| 40 mph (64.37 km/h) | 37.96 mph (61.09 km/h) |
| 45 mph (72.42 km/h) | 42.71 mph (68.73 km/h) |
| 50 mph (80.47 km/h) | 47.45 mph (76.37 km/h) |
| 55 mph (88.51 km/h) | 52.2 mph (84 km/h) |
| 60 mph (96.56 km/h) | 56.94 mph (91.64 km/h) |
| 65 mph (104.61 km/h) | 61.69 mph (99.28 km/h) |
| 70 mph (112.65 km/h) | 66.43 mph (106.91 km/h) |
| 75 mph (120.7 km/h) | 71.18 mph (114.55 km/h) |
| 80 mph (128.75 km/h) | 75.92 mph (122.19 km/h) |
| 85 mph (136.79 km/h) | 80.67 mph (129.82 km/h) |
| 90 mph (144.84 km/h) | 85.41 mph (137.46 km/h) |
| 95 mph (152.89 km/h) | 90.16 mph (145.1 km/h) |
| 100 mph (160.93 km/h) | 94.9 mph (152.73 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
