Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/65-12 | 135/70-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 18.4 (467.3) | 19.44 (493.8) | 1.04 (26.5) 5.7% |
| Width inches (mm) | 4.92 (125) | 5.31 (135) | 0.39 (10) 8% |
| Circum. inches (mm) | 57.8 (1468.07) | 61.08 (1551.32) | 3.28 (83.25) 5.7% |
| Sidewall Height inches (mm) | 3.2 (81.25) | 3.72 (94.5) | 0.52 (13.25) 16.3% |
| Revolutions per mile (km) | 1096.23 (681.17) | 1037.4 (644.61) | -58.83 (-36.56) -5.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.13 mph (34.01 km/h) |
| 25 mph (40.23 km/h) | 26.42 mph (42.52 km/h) |
| 30 mph (48.28 km/h) | 31.7 mph (51.02 km/h) |
| 35 mph (56.33 km/h) | 36.98 mph (59.52 km/h) |
| 40 mph (64.37 km/h) | 42.27 mph (68.02 km/h) |
| 45 mph (72.42 km/h) | 47.55 mph (76.53 km/h) |
| 50 mph (80.47 km/h) | 52.84 mph (85.03 km/h) |
| 55 mph (88.51 km/h) | 58.12 mph (93.53 km/h) |
| 60 mph (96.56 km/h) | 63.4 mph (102.04 km/h) |
| 65 mph (104.61 km/h) | 68.69 mph (110.54 km/h) |
| 70 mph (112.65 km/h) | 73.97 mph (119.04 km/h) |
| 75 mph (120.7 km/h) | 79.25 mph (127.55 km/h) |
| 80 mph (128.75 km/h) | 84.54 mph (136.05 km/h) |
| 85 mph (136.79 km/h) | 89.82 mph (144.55 km/h) |
| 90 mph (144.84 km/h) | 95.1 mph (153.06 km/h) |
| 95 mph (152.89 km/h) | 100.39 mph (161.56 km/h) |
| 100 mph (160.93 km/h) | 105.67 mph (170.06 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
