Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/45-17 | 255/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.74 (679.3) | 26.04 (661.3) | -0.71 (-18) -2.6% |
| Width inches (mm) | 10.83 (275) | 10.04 (255) | -0.79 (-20) -7.3% |
| Circum. inches (mm) | 84.02 (2134.08) | 81.79 (2077.54) | -2.23 (-56.55) -2.6% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 4.52 (114.75) | -0.35 (-9) -7.3% |
| Revolutions per mile (km) | 754.11 (468.58) | 774.64 (481.34) | 20.53 (12.75) 2.7% |
255/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.47 mph (31.33 km/h) |
| 25 mph (40.23 km/h) | 24.34 mph (39.17 km/h) |
| 30 mph (48.28 km/h) | 29.21 mph (47 km/h) |
| 35 mph (56.33 km/h) | 34.07 mph (54.83 km/h) |
| 40 mph (64.37 km/h) | 38.94 mph (62.67 km/h) |
| 45 mph (72.42 km/h) | 43.81 mph (70.5 km/h) |
| 50 mph (80.47 km/h) | 48.68 mph (78.34 km/h) |
| 55 mph (88.51 km/h) | 53.54 mph (86.17 km/h) |
| 60 mph (96.56 km/h) | 58.41 mph (94 km/h) |
| 65 mph (104.61 km/h) | 63.28 mph (101.84 km/h) |
| 70 mph (112.65 km/h) | 68.15 mph (109.67 km/h) |
| 75 mph (120.7 km/h) | 73.01 mph (117.5 km/h) |
| 80 mph (128.75 km/h) | 77.88 mph (125.34 km/h) |
| 85 mph (136.79 km/h) | 82.75 mph (133.17 km/h) |
| 90 mph (144.84 km/h) | 87.62 mph (141 km/h) |
| 95 mph (152.89 km/h) | 92.48 mph (148.84 km/h) |
| 100 mph (160.93 km/h) | 97.35 mph (156.67 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1971 | 2290 | 2466 | 2575 | 2693 | 2777 | 2869 | 2978 | 3129 | 3280 | 3448 | 3582 | 3825 | 4094 | 4303 | 4438 | 4513 | 4790 | 5176 | 6015 |
Better Fuel Economy Factory Ratios Increased Power
