Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/85-16 | 125/85-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.37 (618.9) | 25.37 (644.3) | 1 (25.4) 4.1% |
| Width inches (mm) | 4.92 (125) | 4.92 (125) | 0 (0) 0% |
| Circum. inches (mm) | 76.55 (1944.33) | 79.69 (2024.13) | 3.14 (79.8) 4.1% |
| Sidewall Height inches (mm) | 4.18 (106.25) | 4.18 (106.25) | 0 (0) 0% |
| Revolutions per mile (km) | 827.71 (514.31) | 795.08 (494.04) | -32.63 (-20.28) -3.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.82 mph (33.51 km/h) |
| 25 mph (40.23 km/h) | 26.03 mph (41.88 km/h) |
| 30 mph (48.28 km/h) | 31.23 mph (50.26 km/h) |
| 35 mph (56.33 km/h) | 36.44 mph (58.64 km/h) |
| 40 mph (64.37 km/h) | 41.64 mph (67.02 km/h) |
| 45 mph (72.42 km/h) | 46.85 mph (75.39 km/h) |
| 50 mph (80.47 km/h) | 52.05 mph (83.77 km/h) |
| 55 mph (88.51 km/h) | 57.26 mph (92.15 km/h) |
| 60 mph (96.56 km/h) | 62.46 mph (100.52 km/h) |
| 65 mph (104.61 km/h) | 67.67 mph (108.9 km/h) |
| 70 mph (112.65 km/h) | 72.87 mph (117.28 km/h) |
| 75 mph (120.7 km/h) | 78.08 mph (125.65 km/h) |
| 80 mph (128.75 km/h) | 83.28 mph (134.03 km/h) |
| 85 mph (136.79 km/h) | 88.49 mph (142.41 km/h) |
| 90 mph (144.84 km/h) | 93.69 mph (150.79 km/h) |
| 95 mph (152.89 km/h) | 98.9 mph (159.16 km/h) |
| 100 mph (160.93 km/h) | 104.1 mph (167.54 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 2351 | 2531 | 2643 | 2764 | 2850 | 2945 | 3057 | 3211 | 3366 | 3539 | 3676 | 3926 | 4202 | 4417 | 4555 | 4632 | 4916 | 5312 | 6173 |
Better Fuel Economy Factory Ratios Increased Power
