Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/70-18 | 150/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.61 (625.2) | 25.27 (641.8) | 0.65 (16.6) 2.7% |
| Width inches (mm) | 4.72 (120) | 5.91 (150) | 1.18 (30) 25% |
| Circum. inches (mm) | 77.33 (1964.12) | 79.38 (2016.27) | 2.05 (52.15) 2.7% |
| Sidewall Height inches (mm) | 3.31 (84) | 4.13 (105) | 0.83 (21) 25% |
| Revolutions per mile (km) | 819.37 (509.13) | 798.18 (495.96) | -21.19 (-13.17) -2.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.53 mph (33.04 km/h) |
| 25 mph (40.23 km/h) | 25.66 mph (41.3 km/h) |
| 30 mph (48.28 km/h) | 30.8 mph (49.56 km/h) |
| 35 mph (56.33 km/h) | 35.93 mph (57.82 km/h) |
| 40 mph (64.37 km/h) | 41.06 mph (66.08 km/h) |
| 45 mph (72.42 km/h) | 46.19 mph (74.34 km/h) |
| 50 mph (80.47 km/h) | 51.33 mph (82.6 km/h) |
| 55 mph (88.51 km/h) | 56.46 mph (90.86 km/h) |
| 60 mph (96.56 km/h) | 61.59 mph (99.12 km/h) |
| 65 mph (104.61 km/h) | 66.73 mph (107.39 km/h) |
| 70 mph (112.65 km/h) | 71.86 mph (115.65 km/h) |
| 75 mph (120.7 km/h) | 76.99 mph (123.91 km/h) |
| 80 mph (128.75 km/h) | 82.12 mph (132.17 km/h) |
| 85 mph (136.79 km/h) | 87.26 mph (140.43 km/h) |
| 90 mph (144.84 km/h) | 92.39 mph (148.69 km/h) |
| 95 mph (152.89 km/h) | 97.52 mph (156.95 km/h) |
| 100 mph (160.93 km/h) | 102.66 mph (165.21 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2031 | 2360 | 2541 | 2654 | 2775 | 2861 | 2956 | 3068 | 3224 | 3380 | 3552 | 3691 | 3941 | 4218 | 4434 | 4572 | 4650 | 4935 | 5333 | 6197 |
Better Fuel Economy Factory Ratios Increased Power
