Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-13 | 135/70-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.44 (519.2) | 19.44 (493.8) | -1 (-25.4) -4.9% |
| Width inches (mm) | 5.31 (135) | 5.31 (135) | 0 (0) 0% |
| Circum. inches (mm) | 64.22 (1631.11) | 61.08 (1551.32) | -3.14 (-79.8) -4.9% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 3.72 (94.5) | 0 (0) 0% |
| Revolutions per mile (km) | 986.65 (613.08) | 1037.4 (644.61) | 50.75 (31.54) 5.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.02 mph (30.61 km/h) |
| 25 mph (40.23 km/h) | 23.78 mph (38.27 km/h) |
| 30 mph (48.28 km/h) | 28.53 mph (45.92 km/h) |
| 35 mph (56.33 km/h) | 33.29 mph (53.57 km/h) |
| 40 mph (64.37 km/h) | 38.04 mph (61.22 km/h) |
| 45 mph (72.42 km/h) | 42.8 mph (68.88 km/h) |
| 50 mph (80.47 km/h) | 47.55 mph (76.53 km/h) |
| 55 mph (88.51 km/h) | 52.31 mph (84.18 km/h) |
| 60 mph (96.56 km/h) | 57.06 mph (91.84 km/h) |
| 65 mph (104.61 km/h) | 61.82 mph (99.49 km/h) |
| 70 mph (112.65 km/h) | 66.58 mph (107.14 km/h) |
| 75 mph (120.7 km/h) | 71.33 mph (114.8 km/h) |
| 80 mph (128.75 km/h) | 76.09 mph (122.45 km/h) |
| 85 mph (136.79 km/h) | 80.84 mph (130.1 km/h) |
| 90 mph (144.84 km/h) | 85.6 mph (137.76 km/h) |
| 95 mph (152.89 km/h) | 90.35 mph (145.41 km/h) |
| 100 mph (160.93 km/h) | 95.11 mph (153.06 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
