Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/85-16 | 125/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.37 (618.9) | 24.87 (631.8) | 0.51 (12.9) 2.1% |
| Width inches (mm) | 4.92 (125) | 4.92 (125) | 0 (0) 0% |
| Circum. inches (mm) | 76.55 (1944.33) | 78.14 (1984.86) | 1.6 (40.53) 2.1% |
| Sidewall Height inches (mm) | 4.18 (106.25) | 3.94 (100) | -0.25 (-6.25) -5.9% |
| Revolutions per mile (km) | 827.71 (514.31) | 810.81 (503.81) | -16.9 (-10.5) -2% |
125/80-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.42 mph (32.86 km/h) |
| 25 mph (40.23 km/h) | 25.52 mph (41.07 km/h) |
| 30 mph (48.28 km/h) | 30.63 mph (49.29 km/h) |
| 35 mph (56.33 km/h) | 35.73 mph (57.5 km/h) |
| 40 mph (64.37 km/h) | 40.83 mph (65.72 km/h) |
| 45 mph (72.42 km/h) | 45.94 mph (73.93 km/h) |
| 50 mph (80.47 km/h) | 51.04 mph (82.14 km/h) |
| 55 mph (88.51 km/h) | 56.15 mph (90.36 km/h) |
| 60 mph (96.56 km/h) | 61.25 mph (98.57 km/h) |
| 65 mph (104.61 km/h) | 66.35 mph (106.79 km/h) |
| 70 mph (112.65 km/h) | 71.46 mph (115 km/h) |
| 75 mph (120.7 km/h) | 76.56 mph (123.22 km/h) |
| 80 mph (128.75 km/h) | 81.67 mph (131.43 km/h) |
| 85 mph (136.79 km/h) | 86.77 mph (139.65 km/h) |
| 90 mph (144.84 km/h) | 91.88 mph (147.86 km/h) |
| 95 mph (152.89 km/h) | 96.98 mph (156.07 km/h) |
| 100 mph (160.93 km/h) | 102.08 mph (164.29 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2063 | 2397 | 2581 | 2696 | 2818 | 2906 | 3003 | 3117 | 3275 | 3433 | 3609 | 3749 | 4004 | 4285 | 4504 | 4645 | 4724 | 5014 | 5417 | 6295 |
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