Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/50-17 | 255/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.25 (666.8) | 26.04 (661.3) | -0.22 (-5.5) -0.8% |
| Width inches (mm) | 9.25 (235) | 10.04 (255) | 0.79 (20) 8.5% |
| Circum. inches (mm) | 82.47 (2094.81) | 81.79 (2077.54) | -0.68 (-17.28) -0.8% |
| Sidewall Height inches (mm) | 4.63 (117.5) | 4.52 (114.75) | -0.11 (-2.75) -2.3% |
| Revolutions per mile (km) | 768.25 (477.37) | 774.64 (481.34) | 6.39 (3.97) 0.8% |
255/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.84 mph (31.92 km/h) |
| 25 mph (40.23 km/h) | 24.79 mph (39.9 km/h) |
| 30 mph (48.28 km/h) | 29.75 mph (47.88 km/h) |
| 35 mph (56.33 km/h) | 34.71 mph (55.86 km/h) |
| 40 mph (64.37 km/h) | 39.67 mph (63.84 km/h) |
| 45 mph (72.42 km/h) | 44.63 mph (71.82 km/h) |
| 50 mph (80.47 km/h) | 49.59 mph (79.8 km/h) |
| 55 mph (88.51 km/h) | 54.55 mph (87.78 km/h) |
| 60 mph (96.56 km/h) | 59.51 mph (95.76 km/h) |
| 65 mph (104.61 km/h) | 64.46 mph (103.74 km/h) |
| 70 mph (112.65 km/h) | 69.42 mph (111.73 km/h) |
| 75 mph (120.7 km/h) | 74.38 mph (119.71 km/h) |
| 80 mph (128.75 km/h) | 79.34 mph (127.69 km/h) |
| 85 mph (136.79 km/h) | 84.3 mph (135.67 km/h) |
| 90 mph (144.84 km/h) | 89.26 mph (143.65 km/h) |
| 95 mph (152.89 km/h) | 94.22 mph (151.63 km/h) |
| 100 mph (160.93 km/h) | 99.18 mph (159.61 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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