Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/70-15 | 28/7.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.89 (556) | 28.08 (713.34) | 6.19 (157.34) 28.3% |
| Width inches (mm) | 4.92 (125) | 7.52 (191) | 2.6 (66) 52.8% |
| Circum. inches (mm) | 68.77 (1746.73) | 88.23 (2241.02) | 19.46 (494.3) 28.3% |
| Sidewall Height inches (mm) | 3.44 (87.5) | 6.54 (166.17) | 3.1 (78.67) 89.9% |
| Revolutions per mile (km) | 921.35 (572.5) | 718.13 (446.22) | -203.22 (-126.27) -22.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.66 mph (41.3 km/h) |
| 25 mph (40.23 km/h) | 32.07 mph (51.62 km/h) |
| 30 mph (48.28 km/h) | 38.49 mph (61.94 km/h) |
| 35 mph (56.33 km/h) | 44.9 mph (72.27 km/h) |
| 40 mph (64.37 km/h) | 51.32 mph (82.59 km/h) |
| 45 mph (72.42 km/h) | 57.73 mph (92.91 km/h) |
| 50 mph (80.47 km/h) | 64.15 mph (103.24 km/h) |
| 55 mph (88.51 km/h) | 70.56 mph (113.56 km/h) |
| 60 mph (96.56 km/h) | 76.98 mph (123.89 km/h) |
| 65 mph (104.61 km/h) | 83.39 mph (134.21 km/h) |
| 70 mph (112.65 km/h) | 89.81 mph (144.53 km/h) |
| 75 mph (120.7 km/h) | 96.22 mph (154.86 km/h) |
| 80 mph (128.75 km/h) | 102.64 mph (165.18 km/h) |
| 85 mph (136.79 km/h) | 109.05 mph (175.51 km/h) |
| 90 mph (144.84 km/h) | 115.47 mph (185.83 km/h) |
| 95 mph (152.89 km/h) | 121.88 mph (196.15 km/h) |
| 100 mph (160.93 km/h) | 128.3 mph (206.48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1828 | 2123 | 2286 | 2387 | 2496 | 2574 | 2660 | 2761 | 2901 | 3041 | 3196 | 3321 | 3546 | 3795 | 3989 | 4114 | 4184 | 4440 | 4798 | 5576 |
Better Fuel Economy Factory Ratios Increased Power
