Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/80-14 | 215/80-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.5 (571.6) | 33.54 (852) | 11.04 (280.4) 49.1% |
| Width inches (mm) | 5.31 (135) | 8.46 (215) | 3.15 (80) 59.3% |
| Circum. inches (mm) | 70.7 (1795.73) | 105.38 (2676.64) | 34.68 (880.9) 49.1% |
| Sidewall Height inches (mm) | 4.25 (108) | 6.77 (172) | 2.52 (64) 59.3% |
| Revolutions per mile (km) | 896.2 (556.87) | 601.26 (373.6) | -294.95 (-183.27) -32.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 29.81 mph (47.98 km/h) |
| 25 mph (40.23 km/h) | 37.26 mph (59.97 km/h) |
| 30 mph (48.28 km/h) | 44.72 mph (71.96 km/h) |
| 35 mph (56.33 km/h) | 52.17 mph (83.96 km/h) |
| 40 mph (64.37 km/h) | 59.62 mph (95.95 km/h) |
| 45 mph (72.42 km/h) | 67.07 mph (107.95 km/h) |
| 50 mph (80.47 km/h) | 74.53 mph (119.94 km/h) |
| 55 mph (88.51 km/h) | 81.98 mph (131.93 km/h) |
| 60 mph (96.56 km/h) | 89.43 mph (143.93 km/h) |
| 65 mph (104.61 km/h) | 96.89 mph (155.92 km/h) |
| 70 mph (112.65 km/h) | 104.34 mph (167.92 km/h) |
| 75 mph (120.7 km/h) | 111.79 mph (179.91 km/h) |
| 80 mph (128.75 km/h) | 119.24 mph (191.91 km/h) |
| 85 mph (136.79 km/h) | 126.7 mph (203.9 km/h) |
| 90 mph (144.84 km/h) | 134.15 mph (215.89 km/h) |
| 95 mph (152.89 km/h) | 141.6 mph (227.89 km/h) |
| 100 mph (160.93 km/h) | 149.06 mph (239.88 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1530 | 1777 | 1914 | 1999 | 2090 | 2155 | 2227 | 2311 | 2429 | 2546 | 2676 | 2780 | 2969 | 3177 | 3340 | 3444 | 3503 | 3718 | 4017 | 4668 |
Better Fuel Economy Factory Ratios Increased Power
