Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/80-14 | 215/75-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.5 (571.6) | 32.7 (830.5) | 10.19 (258.9) 45.3% |
| Width inches (mm) | 5.31 (135) | 8.46 (215) | 3.15 (80) 59.3% |
| Circum. inches (mm) | 70.7 (1795.73) | 102.72 (2609.09) | 32.02 (813.36) 45.3% |
| Sidewall Height inches (mm) | 4.25 (108) | 6.35 (161.25) | 2.1 (53.25) 49.3% |
| Revolutions per mile (km) | 896.2 (556.87) | 616.82 (383.27) | -279.38 (-173.6) -31.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 29.06 mph (46.77 km/h) |
| 25 mph (40.23 km/h) | 36.32 mph (58.46 km/h) |
| 30 mph (48.28 km/h) | 43.59 mph (70.15 km/h) |
| 35 mph (56.33 km/h) | 50.85 mph (81.84 km/h) |
| 40 mph (64.37 km/h) | 58.12 mph (93.53 km/h) |
| 45 mph (72.42 km/h) | 65.38 mph (105.22 km/h) |
| 50 mph (80.47 km/h) | 72.65 mph (116.91 km/h) |
| 55 mph (88.51 km/h) | 79.91 mph (128.61 km/h) |
| 60 mph (96.56 km/h) | 87.18 mph (140.3 km/h) |
| 65 mph (104.61 km/h) | 94.44 mph (151.99 km/h) |
| 70 mph (112.65 km/h) | 101.71 mph (163.68 km/h) |
| 75 mph (120.7 km/h) | 108.97 mph (175.37 km/h) |
| 80 mph (128.75 km/h) | 116.24 mph (187.06 km/h) |
| 85 mph (136.79 km/h) | 123.5 mph (198.75 km/h) |
| 90 mph (144.84 km/h) | 130.76 mph (210.45 km/h) |
| 95 mph (152.89 km/h) | 138.03 mph (222.14 km/h) |
| 100 mph (160.93 km/h) | 145.29 mph (233.83 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1570 | 1824 | 1964 | 2051 | 2144 | 2211 | 2284 | 2371 | 2491 | 2612 | 2745 | 2852 | 3046 | 3260 | 3427 | 3533 | 3594 | 3814 | 4121 | 4789 |
Better Fuel Economy Factory Ratios Increased Power
