Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-18 | 375/70-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.44 (646.2) | 36.67 (931.4) | 11.23 (285.2) 44.1% |
| Width inches (mm) | 5.31 (135) | 14.76 (375) | 9.45 (240) 177.8% |
| Circum. inches (mm) | 79.93 (2030.1) | 115.2 (2926.08) | 35.27 (895.98) 44.1% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 10.33 (262.5) | 6.61 (168) 177.8% |
| Revolutions per mile (km) | 792.74 (492.59) | 550 (341.75) | -242.74 (-150.83) -30.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28.83 mph (46.39 km/h) |
| 25 mph (40.23 km/h) | 36.03 mph (57.99 km/h) |
| 30 mph (48.28 km/h) | 43.24 mph (69.59 km/h) |
| 35 mph (56.33 km/h) | 50.45 mph (81.19 km/h) |
| 40 mph (64.37 km/h) | 57.65 mph (92.79 km/h) |
| 45 mph (72.42 km/h) | 64.86 mph (104.38 km/h) |
| 50 mph (80.47 km/h) | 72.07 mph (115.98 km/h) |
| 55 mph (88.51 km/h) | 79.27 mph (127.58 km/h) |
| 60 mph (96.56 km/h) | 86.48 mph (139.18 km/h) |
| 65 mph (104.61 km/h) | 93.69 mph (150.78 km/h) |
| 70 mph (112.65 km/h) | 100.89 mph (162.37 km/h) |
| 75 mph (120.7 km/h) | 108.1 mph (173.97 km/h) |
| 80 mph (128.75 km/h) | 115.31 mph (185.57 km/h) |
| 85 mph (136.79 km/h) | 122.51 mph (197.17 km/h) |
| 90 mph (144.84 km/h) | 129.72 mph (208.77 km/h) |
| 95 mph (152.89 km/h) | 136.93 mph (220.36 km/h) |
| 100 mph (160.93 km/h) | 144.13 mph (231.96 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1400 | 1626 | 1751 | 1828 | 1912 | 1971 | 2037 | 2114 | 2222 | 2329 | 2448 | 2543 | 2716 | 2906 | 3055 | 3151 | 3204 | 3401 | 3675 | 4270 |
Better Fuel Economy Factory Ratios Increased Power
