Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/70-15 | 105/90-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.89 (556) | 19.44 (493.8) | -2.45 (-62.2) -11.2% |
| Width inches (mm) | 4.92 (125) | 4.13 (105) | -0.79 (-20) -16% |
| Circum. inches (mm) | 68.77 (1746.73) | 61.08 (1551.32) | -7.69 (-195.41) -11.2% |
| Sidewall Height inches (mm) | 3.44 (87.5) | 3.72 (94.5) | 0.28 (7) 8% |
| Revolutions per mile (km) | 921.35 (572.5) | 1037.4 (644.61) | 116.05 (72.11) 12.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.76 mph (28.59 km/h) |
| 25 mph (40.23 km/h) | 22.2 mph (35.73 km/h) |
| 30 mph (48.28 km/h) | 26.64 mph (42.88 km/h) |
| 35 mph (56.33 km/h) | 31.08 mph (50.03 km/h) |
| 40 mph (64.37 km/h) | 35.53 mph (57.17 km/h) |
| 45 mph (72.42 km/h) | 39.97 mph (64.32 km/h) |
| 50 mph (80.47 km/h) | 44.41 mph (71.47 km/h) |
| 55 mph (88.51 km/h) | 48.85 mph (78.61 km/h) |
| 60 mph (96.56 km/h) | 53.29 mph (85.76 km/h) |
| 65 mph (104.61 km/h) | 57.73 mph (92.91 km/h) |
| 70 mph (112.65 km/h) | 62.17 mph (100.05 km/h) |
| 75 mph (120.7 km/h) | 66.61 mph (107.2 km/h) |
| 80 mph (128.75 km/h) | 71.05 mph (114.34 km/h) |
| 85 mph (136.79 km/h) | 75.49 mph (121.49 km/h) |
| 90 mph (144.84 km/h) | 79.93 mph (128.64 km/h) |
| 95 mph (152.89 km/h) | 84.37 mph (135.78 km/h) |
| 100 mph (160.93 km/h) | 88.81 mph (142.93 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
