Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/80-19 | 255/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.76 (730.6) | 28.04 (712.3) | -0.72 (-18.3) -2.5% |
| Width inches (mm) | 6.1 (155) | 10.04 (255) | 3.94 (100) 64.5% |
| Circum. inches (mm) | 90.36 (2295.25) | 88.1 (2237.76) | -2.26 (-57.49) -2.5% |
| Sidewall Height inches (mm) | 4.88 (124) | 5.52 (140.25) | 0.64 (16.25) 13.1% |
| Revolutions per mile (km) | 701.16 (435.68) | 719.18 (446.88) | 18.01 (11.19) 2.6% |
255/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.5 mph (31.38 km/h) |
| 25 mph (40.23 km/h) | 24.37 mph (39.23 km/h) |
| 30 mph (48.28 km/h) | 29.25 mph (47.07 km/h) |
| 35 mph (56.33 km/h) | 34.12 mph (54.92 km/h) |
| 40 mph (64.37 km/h) | 39 mph (62.76 km/h) |
| 45 mph (72.42 km/h) | 43.87 mph (70.61 km/h) |
| 50 mph (80.47 km/h) | 48.75 mph (78.45 km/h) |
| 55 mph (88.51 km/h) | 53.62 mph (86.3 km/h) |
| 60 mph (96.56 km/h) | 58.5 mph (94.14 km/h) |
| 65 mph (104.61 km/h) | 63.37 mph (101.99 km/h) |
| 70 mph (112.65 km/h) | 68.25 mph (109.83 km/h) |
| 75 mph (120.7 km/h) | 73.12 mph (117.68 km/h) |
| 80 mph (128.75 km/h) | 78 mph (125.52 km/h) |
| 85 mph (136.79 km/h) | 82.87 mph (133.37 km/h) |
| 90 mph (144.84 km/h) | 87.75 mph (141.21 km/h) |
| 95 mph (152.89 km/h) | 92.62 mph (149.06 km/h) |
| 100 mph (160.93 km/h) | 97.5 mph (156.9 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1830 | 2126 | 2290 | 2391 | 2500 | 2578 | 2663 | 2765 | 2905 | 3045 | 3201 | 3325 | 3551 | 3801 | 3995 | 4120 | 4190 | 4447 | 4805 | 5584 |
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