Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/40-17 | 255/50-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.66 (651.8) | 27.04 (686.8) | 1.38 (35) 5.4% |
| Width inches (mm) | 10.83 (275) | 10.04 (255) | -0.79 (-20) -7.3% |
| Circum. inches (mm) | 80.62 (2047.69) | 84.95 (2157.65) | 4.33 (109.96) 5.4% |
| Sidewall Height inches (mm) | 4.33 (110) | 5.02 (127.5) | 0.69 (17.5) 15.9% |
| Revolutions per mile (km) | 785.93 (488.35) | 745.88 (463.47) | -40.05 (-24.89) -5.1% |
255/50-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.07 mph (33.92 km/h) |
| 25 mph (40.23 km/h) | 26.34 mph (42.39 km/h) |
| 30 mph (48.28 km/h) | 31.61 mph (50.87 km/h) |
| 35 mph (56.33 km/h) | 36.88 mph (59.35 km/h) |
| 40 mph (64.37 km/h) | 42.15 mph (67.83 km/h) |
| 45 mph (72.42 km/h) | 47.42 mph (76.31 km/h) |
| 50 mph (80.47 km/h) | 52.68 mph (84.79 km/h) |
| 55 mph (88.51 km/h) | 57.95 mph (93.27 km/h) |
| 60 mph (96.56 km/h) | 63.22 mph (101.75 km/h) |
| 65 mph (104.61 km/h) | 68.49 mph (110.22 km/h) |
| 70 mph (112.65 km/h) | 73.76 mph (118.7 km/h) |
| 75 mph (120.7 km/h) | 79.03 mph (127.18 km/h) |
| 80 mph (128.75 km/h) | 84.3 mph (135.66 km/h) |
| 85 mph (136.79 km/h) | 89.56 mph (144.14 km/h) |
| 90 mph (144.84 km/h) | 94.83 mph (152.62 km/h) |
| 95 mph (152.89 km/h) | 100.1 mph (161.1 km/h) |
| 100 mph (160.93 km/h) | 105.37 mph (169.58 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1898 | 2205 | 2375 | 2480 | 2593 | 2674 | 2762 | 2867 | 3013 | 3158 | 3320 | 3449 | 3683 | 3942 | 4144 | 4273 | 4345 | 4612 | 4984 | 5791 |
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