Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-18 | 375/75-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.44 (646.2) | 38.15 (968.9) | 12.7 (322.7) 49.9% |
| Width inches (mm) | 5.31 (135) | 14.76 (375) | 9.45 (240) 177.8% |
| Circum. inches (mm) | 79.93 (2030.1) | 119.84 (3043.89) | 39.91 (1013.79) 49.9% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 11.07 (281.25) | 7.35 (186.75) 197.6% |
| Revolutions per mile (km) | 792.74 (492.59) | 528.71 (328.53) | -264.03 (-164.06) -33.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 29.99 mph (48.26 km/h) |
| 25 mph (40.23 km/h) | 37.48 mph (60.33 km/h) |
| 30 mph (48.28 km/h) | 44.98 mph (72.39 km/h) |
| 35 mph (56.33 km/h) | 52.48 mph (84.46 km/h) |
| 40 mph (64.37 km/h) | 59.98 mph (96.52 km/h) |
| 45 mph (72.42 km/h) | 67.47 mph (108.59 km/h) |
| 50 mph (80.47 km/h) | 74.97 mph (120.65 km/h) |
| 55 mph (88.51 km/h) | 82.47 mph (132.72 km/h) |
| 60 mph (96.56 km/h) | 89.96 mph (144.78 km/h) |
| 65 mph (104.61 km/h) | 97.46 mph (156.85 km/h) |
| 70 mph (112.65 km/h) | 104.96 mph (168.91 km/h) |
| 75 mph (120.7 km/h) | 112.45 mph (180.98 km/h) |
| 80 mph (128.75 km/h) | 119.95 mph (193.04 km/h) |
| 85 mph (136.79 km/h) | 127.45 mph (205.11 km/h) |
| 90 mph (144.84 km/h) | 134.94 mph (217.17 km/h) |
| 95 mph (152.89 km/h) | 142.44 mph (229.24 km/h) |
| 100 mph (160.93 km/h) | 149.94 mph (241.3 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1345 | 1563 | 1683 | 1758 | 1838 | 1895 | 1958 | 2033 | 2136 | 2239 | 2353 | 2445 | 2611 | 2794 | 2937 | 3029 | 3080 | 3269 | 3533 | 4105 |
Better Fuel Economy Factory Ratios Increased Power
