Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-18 | 135/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.44 (646.2) | 23.72 (602.5) | -1.72 (-43.7) -6.8% |
| Width inches (mm) | 5.31 (135) | 5.31 (135) | 0 (0) 0% |
| Circum. inches (mm) | 79.93 (2030.1) | 74.52 (1892.81) | -5.41 (-137.29) -6.8% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 1.86 (47.25) | -1.86 (-47.25) -50% |
| Revolutions per mile (km) | 792.74 (492.59) | 850.24 (528.31) | 57.5 (35.73) 7.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.65 mph (30.01 km/h) |
| 25 mph (40.23 km/h) | 23.31 mph (37.51 km/h) |
| 30 mph (48.28 km/h) | 27.97 mph (45.02 km/h) |
| 35 mph (56.33 km/h) | 32.63 mph (52.52 km/h) |
| 40 mph (64.37 km/h) | 37.29 mph (60.02 km/h) |
| 45 mph (72.42 km/h) | 41.96 mph (67.52 km/h) |
| 50 mph (80.47 km/h) | 46.62 mph (75.03 km/h) |
| 55 mph (88.51 km/h) | 51.28 mph (82.53 km/h) |
| 60 mph (96.56 km/h) | 55.94 mph (90.03 km/h) |
| 65 mph (104.61 km/h) | 60.6 mph (97.53 km/h) |
| 70 mph (112.65 km/h) | 65.27 mph (105.04 km/h) |
| 75 mph (120.7 km/h) | 69.93 mph (112.54 km/h) |
| 80 mph (128.75 km/h) | 74.59 mph (120.04 km/h) |
| 85 mph (136.79 km/h) | 79.25 mph (127.54 km/h) |
| 90 mph (144.84 km/h) | 83.91 mph (135.05 km/h) |
| 95 mph (152.89 km/h) | 88.58 mph (142.55 km/h) |
| 100 mph (160.93 km/h) | 93.24 mph (150.05 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2164 | 2514 | 2707 | 2827 | 2956 | 3048 | 3149 | 3269 | 3434 | 3600 | 3784 | 3931 | 4198 | 4493 | 4723 | 4871 | 4953 | 5257 | 5681 | 6602 |
Better Fuel Economy Factory Ratios Increased Power
