Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/90-15 | 165/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.86 (606) | 25.39 (645) | 1.54 (39) 6.4% |
| Width inches (mm) | 4.92 (125) | 6.5 (165) | 1.57 (40) 32% |
| Circum. inches (mm) | 74.95 (1903.81) | 79.78 (2026.33) | 4.82 (122.52) 6.4% |
| Sidewall Height inches (mm) | 4.43 (112.5) | 5.2 (132) | 0.77 (19.5) 17.3% |
| Revolutions per mile (km) | 845.33 (525.26) | 794.22 (493.5) | -51.11 (-31.76) -6% |
165/80-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.29 mph (34.26 km/h) |
| 25 mph (40.23 km/h) | 26.61 mph (42.82 km/h) |
| 30 mph (48.28 km/h) | 31.93 mph (51.39 km/h) |
| 35 mph (56.33 km/h) | 37.25 mph (59.95 km/h) |
| 40 mph (64.37 km/h) | 42.57 mph (68.52 km/h) |
| 45 mph (72.42 km/h) | 47.9 mph (77.08 km/h) |
| 50 mph (80.47 km/h) | 53.22 mph (85.65 km/h) |
| 55 mph (88.51 km/h) | 58.54 mph (94.21 km/h) |
| 60 mph (96.56 km/h) | 63.86 mph (102.78 km/h) |
| 65 mph (104.61 km/h) | 69.18 mph (111.34 km/h) |
| 70 mph (112.65 km/h) | 74.5 mph (119.9 km/h) |
| 75 mph (120.7 km/h) | 79.83 mph (128.47 km/h) |
| 80 mph (128.75 km/h) | 85.15 mph (137.03 km/h) |
| 85 mph (136.79 km/h) | 90.47 mph (145.6 km/h) |
| 90 mph (144.84 km/h) | 95.79 mph (154.16 km/h) |
| 95 mph (152.89 km/h) | 101.11 mph (162.73 km/h) |
| 100 mph (160.93 km/h) | 106.44 mph (171.29 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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