Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/85-16 | 227/50-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.37 (618.9) | 25.94 (658.8) | 1.57 (39.9) 6.4% |
| Width inches (mm) | 4.92 (125) | 8.94 (227) | 4.02 (102) 81.6% |
| Circum. inches (mm) | 76.55 (1944.33) | 81.48 (2069.68) | 4.94 (125.35) 6.4% |
| Sidewall Height inches (mm) | 4.18 (106.25) | 4.47 (113.5) | 0.29 (7.25) 6.8% |
| Revolutions per mile (km) | 827.71 (514.31) | 777.58 (483.17) | -50.13 (-31.15) -6.1% |
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 (42.83 km/h) |
| 30 mph (48.28 km/h) | 31.93 mph (51.39 km/h) |
| 35 mph (56.33 km/h) | 37.26 mph (59.96 km/h) |
| 40 mph (64.37 km/h) | 42.58 mph (68.52 km/h) |
| 45 mph (72.42 km/h) | 47.9 mph (77.09 km/h) |
| 50 mph (80.47 km/h) | 53.22 mph (85.66 km/h) |
| 55 mph (88.51 km/h) | 58.55 mph (94.22 km/h) |
| 60 mph (96.56 km/h) | 63.87 mph (102.79 km/h) |
| 65 mph (104.61 km/h) | 69.19 mph (111.35 km/h) |
| 70 mph (112.65 km/h) | 74.51 mph (119.92 km/h) |
| 75 mph (120.7 km/h) | 79.84 mph (128.48 km/h) |
| 80 mph (128.75 km/h) | 85.16 mph (137.05 km/h) |
| 85 mph (136.79 km/h) | 90.48 mph (145.61 km/h) |
| 90 mph (144.84 km/h) | 95.8 mph (154.18 km/h) |
| 95 mph (152.89 km/h) | 101.12 mph (162.74 km/h) |
| 100 mph (160.93 km/h) | 106.45 mph (171.31 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1979 | 2299 | 2476 | 2585 | 2703 | 2787 | 2880 | 2989 | 3141 | 3292 | 3461 | 3596 | 3840 | 4109 | 4320 | 4454 | 4530 | 4808 | 5195 | 6037 |
Better Fuel Economy Factory Ratios Increased Power
