Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/80-15 | 128/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.87 (581) | 24.57 (624) | 1.69 (43) 7.4% |
| Width inches (mm) | 4.92 (125) | 5.04 (128) | 0.12 (3) 2.4% |
| Circum. inches (mm) | 71.86 (1825.27) | 77.18 (1960.35) | 5.32 (135.09) 7.4% |
| Sidewall Height inches (mm) | 3.94 (100) | 4.28 (108.8) | 0.35 (8.8) 8.8% |
| Revolutions per mile (km) | 881.7 (547.86) | 820.95 (510.11) | -60.76 (-37.75) -6.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.48 mph (34.57 km/h) |
| 25 mph (40.23 km/h) | 26.85 mph (43.21 km/h) |
| 30 mph (48.28 km/h) | 32.22 mph (51.85 km/h) |
| 35 mph (56.33 km/h) | 37.59 mph (60.5 km/h) |
| 40 mph (64.37 km/h) | 42.96 mph (69.14 km/h) |
| 45 mph (72.42 km/h) | 48.33 mph (77.78 km/h) |
| 50 mph (80.47 km/h) | 53.7 mph (86.42 km/h) |
| 55 mph (88.51 km/h) | 59.07 mph (95.07 km/h) |
| 60 mph (96.56 km/h) | 64.44 mph (103.71 km/h) |
| 65 mph (104.61 km/h) | 69.81 mph (112.35 km/h) |
| 70 mph (112.65 km/h) | 75.18 mph (120.99 km/h) |
| 75 mph (120.7 km/h) | 80.55 mph (129.63 km/h) |
| 80 mph (128.75 km/h) | 85.92 mph (138.28 km/h) |
| 85 mph (136.79 km/h) | 91.29 mph (146.92 km/h) |
| 90 mph (144.84 km/h) | 96.66 mph (155.56 km/h) |
| 95 mph (152.89 km/h) | 102.03 mph (164.2 km/h) |
| 100 mph (160.93 km/h) | 107.4 mph (172.85 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2089 | 2427 | 2614 | 2729 | 2854 | 2943 | 3040 | 3156 | 3316 | 3476 | 3654 | 3796 | 4054 | 4338 | 4561 | 4703 | 4783 | 5076 | 5485 | 6374 |
Better Fuel Economy Factory Ratios Increased Power
