Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/80-15 | 165/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.65 (677) | 25.39 (645) | -1.26 (-32) -4.7% |
| Width inches (mm) | 7.28 (185) | 6.5 (165) | -0.79 (-20) -10.8% |
| Circum. inches (mm) | 83.73 (2126.86) | 79.78 (2026.33) | -3.96 (-100.53) -4.7% |
| Sidewall Height inches (mm) | 5.83 (148) | 5.2 (132) | -0.63 (-16) -10.8% |
| Revolutions per mile (km) | 756.68 (470.18) | 794.22 (493.5) | 37.54 (23.33) 5% |
165/80-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.05 mph (30.67 km/h) |
| 25 mph (40.23 km/h) | 23.82 mph (38.33 km/h) |
| 30 mph (48.28 km/h) | 28.58 mph (46 km/h) |
| 35 mph (56.33 km/h) | 33.35 mph (53.66 km/h) |
| 40 mph (64.37 km/h) | 38.11 mph (61.33 km/h) |
| 45 mph (72.42 km/h) | 42.87 mph (69 km/h) |
| 50 mph (80.47 km/h) | 47.64 mph (76.66 km/h) |
| 55 mph (88.51 km/h) | 52.4 mph (84.33 km/h) |
| 60 mph (96.56 km/h) | 57.16 mph (92 km/h) |
| 65 mph (104.61 km/h) | 61.93 mph (99.66 km/h) |
| 70 mph (112.65 km/h) | 66.69 mph (107.33 km/h) |
| 75 mph (120.7 km/h) | 71.45 mph (115 km/h) |
| 80 mph (128.75 km/h) | 76.22 mph (122.66 km/h) |
| 85 mph (136.79 km/h) | 80.98 mph (130.33 km/h) |
| 90 mph (144.84 km/h) | 85.75 mph (137.99 km/h) |
| 95 mph (152.89 km/h) | 90.51 mph (145.66 km/h) |
| 100 mph (160.93 km/h) | 95.27 mph (153.33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | 2348 | 2529 | 2640 | 2761 | 2847 | 2941 | 3053 | 3208 | 3363 | 3535 | 3672 | 3922 | 4197 | 4412 | 4550 | 4627 | 4911 | 5307 | 6167 |
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