Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-17 | 155/90-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.54 (648.8) | 27.98 (710.8) | 2.44 (62) 9.6% |
| Width inches (mm) | 6.1 (155) | 6.1 (155) | 0 (0) 0% |
| Circum. inches (mm) | 80.25 (2038.27) | 87.92 (2233.04) | 7.67 (194.78) 9.6% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 5.49 (139.5) | 1.22 (31) 28.6% |
| Revolutions per mile (km) | 789.57 (490.61) | 720.7 (447.82) | -68.87 (-42.79) -8.7% |
155/90-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.91 mph (35.26 km/h) |
| 25 mph (40.23 km/h) | 27.39 mph (44.08 km/h) |
| 30 mph (48.28 km/h) | 32.87 mph (52.89 km/h) |
| 35 mph (56.33 km/h) | 38.34 mph (61.71 km/h) |
| 40 mph (64.37 km/h) | 43.82 mph (70.53 km/h) |
| 45 mph (72.42 km/h) | 49.3 mph (79.34 km/h) |
| 50 mph (80.47 km/h) | 54.78 mph (88.16 km/h) |
| 55 mph (88.51 km/h) | 60.26 mph (96.97 km/h) |
| 60 mph (96.56 km/h) | 65.73 mph (105.79 km/h) |
| 65 mph (104.61 km/h) | 71.21 mph (114.6 km/h) |
| 70 mph (112.65 km/h) | 76.69 mph (123.42 km/h) |
| 75 mph (120.7 km/h) | 82.17 mph (132.24 km/h) |
| 80 mph (128.75 km/h) | 87.64 mph (141.05 km/h) |
| 85 mph (136.79 km/h) | 93.12 mph (149.87 km/h) |
| 90 mph (144.84 km/h) | 98.6 mph (158.68 km/h) |
| 95 mph (152.89 km/h) | 104.08 mph (167.5 km/h) |
| 100 mph (160.93 km/h) | 109.56 mph (176.31 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1834 | 2131 | 2294 | 2396 | 2505 | 2583 | 2669 | 2771 | 2911 | 3052 | 3208 | 3332 | 3559 | 3809 | 4004 | 4129 | 4199 | 4456 | 4815 | 5596 |
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