Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/90-15 | 165/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.86 (606) | 22.15 (562.5) | -1.71 (-43.5) -7.2% |
| Width inches (mm) | 4.92 (125) | 6.5 (165) | 1.57 (40) 32% |
| Circum. inches (mm) | 74.95 (1903.81) | 69.57 (1767.15) | -5.38 (-136.66) -7.2% |
| Sidewall Height inches (mm) | 4.43 (112.5) | 3.57 (90.75) | -0.86 (-21.75) -19.3% |
| Revolutions per mile (km) | 845.33 (525.26) | 910.7 (565.88) | 65.37 (40.62) 7.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.56 mph (29.88 km/h) |
| 25 mph (40.23 km/h) | 23.21 mph (37.35 km/h) |
| 30 mph (48.28 km/h) | 27.85 mph (44.81 km/h) |
| 35 mph (56.33 km/h) | 32.49 mph (52.28 km/h) |
| 40 mph (64.37 km/h) | 37.13 mph (59.75 km/h) |
| 45 mph (72.42 km/h) | 41.77 mph (67.22 km/h) |
| 50 mph (80.47 km/h) | 46.41 mph (74.69 km/h) |
| 55 mph (88.51 km/h) | 51.05 mph (82.16 km/h) |
| 60 mph (96.56 km/h) | 55.69 mph (89.63 km/h) |
| 65 mph (104.61 km/h) | 60.33 mph (97.1 km/h) |
| 70 mph (112.65 km/h) | 64.98 mph (104.57 km/h) |
| 75 mph (120.7 km/h) | 69.62 mph (112.04 km/h) |
| 80 mph (128.75 km/h) | 74.26 mph (119.51 km/h) |
| 85 mph (136.79 km/h) | 78.9 mph (126.98 km/h) |
| 90 mph (144.84 km/h) | 83.54 mph (134.44 km/h) |
| 95 mph (152.89 km/h) | 88.18 mph (141.91 km/h) |
| 100 mph (160.93 km/h) | 92.82 mph (149.38 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2318 | 2692 | 2899 | 3028 | 3166 | 3264 | 3373 | 3501 | 3679 | 3856 | 4053 | 4211 | 4497 | 4813 | 5059 | 5217 | 5306 | 5631 | 6085 | 7071 |
Better Fuel Economy Factory Ratios Increased Power
