Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/80-15 | 125/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.87 (581) | 24.37 (618.9) | 1.49 (37.9) 6.5% |
| Width inches (mm) | 4.92 (125) | 4.92 (125) | 0 (0) 0% |
| Circum. inches (mm) | 71.86 (1825.27) | 76.55 (1944.33) | 4.69 (119.07) 6.5% |
| Sidewall Height inches (mm) | 3.94 (100) | 4.18 (106.25) | 0.25 (6.25) 6.3% |
| Revolutions per mile (km) | 881.7 (547.86) | 827.71 (514.31) | -53.99 (-33.55) -6.1% |
125/85-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.3 mph (34.29 km/h) |
| 25 mph (40.23 km/h) | 26.63 mph (42.86 km/h) |
| 30 mph (48.28 km/h) | 31.96 mph (51.43 km/h) |
| 35 mph (56.33 km/h) | 37.28 mph (60 km/h) |
| 40 mph (64.37 km/h) | 42.61 mph (68.57 km/h) |
| 45 mph (72.42 km/h) | 47.94 mph (77.14 km/h) |
| 50 mph (80.47 km/h) | 53.26 mph (85.72 km/h) |
| 55 mph (88.51 km/h) | 58.59 mph (94.29 km/h) |
| 60 mph (96.56 km/h) | 63.91 mph (102.86 km/h) |
| 65 mph (104.61 km/h) | 69.24 mph (111.43 km/h) |
| 70 mph (112.65 km/h) | 74.57 mph (120 km/h) |
| 75 mph (120.7 km/h) | 79.89 mph (128.57 km/h) |
| 80 mph (128.75 km/h) | 85.22 mph (137.15 km/h) |
| 85 mph (136.79 km/h) | 90.54 mph (145.72 km/h) |
| 90 mph (144.84 km/h) | 95.87 mph (154.29 km/h) |
| 95 mph (152.89 km/h) | 101.2 mph (162.86 km/h) |
| 100 mph (160.93 km/h) | 106.52 mph (171.43 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2106 | 2447 | 2635 | 2752 | 2877 | 2967 | 3065 | 3182 | 3343 | 3505 | 3684 | 3827 | 4087 | 4374 | 4598 | 4742 | 4822 | 5118 | 5530 | 6427 |
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