Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/80-15 | 165/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.91 (709) | 25.39 (645) | -2.52 (-64) -9% |
| Width inches (mm) | 8.07 (205) | 6.5 (165) | -1.57 (-40) -19.5% |
| Circum. inches (mm) | 87.69 (2227.39) | 79.78 (2026.33) | -7.92 (-201.06) -9% |
| Sidewall Height inches (mm) | 6.46 (164) | 5.2 (132) | -1.26 (-32) -19.5% |
| Revolutions per mile (km) | 722.52 (448.96) | 794.22 (493.5) | 71.69 (44.55) 9.9% |
165/80-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.19 mph (29.28 km/h) |
| 25 mph (40.23 km/h) | 22.74 mph (36.6 km/h) |
| 30 mph (48.28 km/h) | 27.29 mph (43.92 km/h) |
| 35 mph (56.33 km/h) | 31.84 mph (51.24 km/h) |
| 40 mph (64.37 km/h) | 36.39 mph (58.56 km/h) |
| 45 mph (72.42 km/h) | 40.94 mph (65.88 km/h) |
| 50 mph (80.47 km/h) | 45.49 mph (73.2 km/h) |
| 55 mph (88.51 km/h) | 50.04 mph (80.52 km/h) |
| 60 mph (96.56 km/h) | 54.58 mph (87.84 km/h) |
| 65 mph (104.61 km/h) | 59.13 mph (95.16 km/h) |
| 70 mph (112.65 km/h) | 63.68 mph (102.49 km/h) |
| 75 mph (120.7 km/h) | 68.23 mph (109.81 km/h) |
| 80 mph (128.75 km/h) | 72.78 mph (117.13 km/h) |
| 85 mph (136.79 km/h) | 77.33 mph (124.45 km/h) |
| 90 mph (144.84 km/h) | 81.88 mph (131.77 km/h) |
| 95 mph (152.89 km/h) | 86.42 mph (139.09 km/h) |
| 100 mph (160.93 km/h) | 90.97 mph (146.41 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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