Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/40-17 | 255/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.66 (651.8) | 26.04 (661.3) | 0.37 (9.5) 1.5% |
| Width inches (mm) | 10.83 (275) | 10.04 (255) | -0.79 (-20) -7.3% |
| Circum. inches (mm) | 80.62 (2047.69) | 81.79 (2077.54) | 1.18 (29.85) 1.5% |
| Sidewall Height inches (mm) | 4.33 (110) | 4.52 (114.75) | 0.19 (4.75) 4.3% |
| Revolutions per mile (km) | 785.93 (488.35) | 774.64 (481.34) | -11.29 (-7.02) -1.4% |
255/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.29 mph (32.66 km/h) |
| 25 mph (40.23 km/h) | 25.36 mph (40.82 km/h) |
| 30 mph (48.28 km/h) | 30.44 mph (48.98 km/h) |
| 35 mph (56.33 km/h) | 35.51 mph (57.15 km/h) |
| 40 mph (64.37 km/h) | 40.58 mph (65.31 km/h) |
| 45 mph (72.42 km/h) | 45.66 mph (73.48 km/h) |
| 50 mph (80.47 km/h) | 50.73 mph (81.64 km/h) |
| 55 mph (88.51 km/h) | 55.8 mph (89.8 km/h) |
| 60 mph (96.56 km/h) | 60.87 mph (97.97 km/h) |
| 65 mph (104.61 km/h) | 65.95 mph (106.13 km/h) |
| 70 mph (112.65 km/h) | 71.02 mph (114.3 km/h) |
| 75 mph (120.7 km/h) | 76.09 mph (122.46 km/h) |
| 80 mph (128.75 km/h) | 81.17 mph (130.62 km/h) |
| 85 mph (136.79 km/h) | 86.24 mph (138.79 km/h) |
| 90 mph (144.84 km/h) | 91.31 mph (146.95 km/h) |
| 95 mph (152.89 km/h) | 96.38 mph (155.12 km/h) |
| 100 mph (160.93 km/h) | 101.46 mph (163.28 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 |
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