Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/65-12 | 165/45-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 18.4 (467.3) | 17.85 (453.3) | -0.55 (-14) -3% |
| Width inches (mm) | 4.92 (125) | 6.5 (165) | 1.57 (40) 32% |
| Circum. inches (mm) | 57.8 (1468.07) | 56.07 (1424.08) | -1.73 (-43.98) -3% |
| Sidewall Height inches (mm) | 3.2 (81.25) | 2.92 (74.25) | -0.28 (-7) -8.6% |
| Revolutions per mile (km) | 1096.23 (681.17) | 1130.09 (702.2) | 33.86 (21.04) 3.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.4 mph (31.22 km/h) |
| 25 mph (40.23 km/h) | 24.25 mph (39.03 km/h) |
| 30 mph (48.28 km/h) | 29.1 mph (46.83 km/h) |
| 35 mph (56.33 km/h) | 33.95 mph (54.64 km/h) |
| 40 mph (64.37 km/h) | 38.8 mph (62.45 km/h) |
| 45 mph (72.42 km/h) | 43.65 mph (70.25 km/h) |
| 50 mph (80.47 km/h) | 48.5 mph (78.06 km/h) |
| 55 mph (88.51 km/h) | 53.35 mph (85.86 km/h) |
| 60 mph (96.56 km/h) | 58.2 mph (93.67 km/h) |
| 65 mph (104.61 km/h) | 63.05 mph (101.47 km/h) |
| 70 mph (112.65 km/h) | 67.9 mph (109.28 km/h) |
| 75 mph (120.7 km/h) | 72.75 mph (117.08 km/h) |
| 80 mph (128.75 km/h) | 77.6 mph (124.89 km/h) |
| 85 mph (136.79 km/h) | 82.45 mph (132.7 km/h) |
| 90 mph (144.84 km/h) | 87.3 mph (140.5 km/h) |
| 95 mph (152.89 km/h) | 92.15 mph (148.31 km/h) |
| 100 mph (160.93 km/h) | 97 mph (156.11 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
