Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 110/80-18 | 150/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.93 (633.2) | 26.27 (667.2) | 1.34 (34) 5.4% |
| Width inches (mm) | 4.33 (110) | 5.91 (150) | 1.57 (40) 36.4% |
| Circum. inches (mm) | 78.32 (1989.26) | 82.52 (2096.07) | 4.21 (106.81) 5.4% |
| Sidewall Height inches (mm) | 3.46 (88) | 4.13 (105) | 0.67 (17) 19.3% |
| Revolutions per mile (km) | 809.02 (502.7) | 767.79 (477.08) | -41.23 (-25.62) -5.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.07 mph (33.92 km/h) |
| 25 mph (40.23 km/h) | 26.34 mph (42.39 km/h) |
| 30 mph (48.28 km/h) | 31.61 mph (50.87 km/h) |
| 35 mph (56.33 km/h) | 36.88 mph (59.35 km/h) |
| 40 mph (64.37 km/h) | 42.15 mph (67.83 km/h) |
| 45 mph (72.42 km/h) | 47.42 mph (76.31 km/h) |
| 50 mph (80.47 km/h) | 52.68 mph (84.79 km/h) |
| 55 mph (88.51 km/h) | 57.95 mph (93.27 km/h) |
| 60 mph (96.56 km/h) | 63.22 mph (101.75 km/h) |
| 65 mph (104.61 km/h) | 68.49 mph (110.22 km/h) |
| 70 mph (112.65 km/h) | 73.76 mph (118.7 km/h) |
| 75 mph (120.7 km/h) | 79.03 mph (127.18 km/h) |
| 80 mph (128.75 km/h) | 84.3 mph (135.66 km/h) |
| 85 mph (136.79 km/h) | 89.56 mph (144.14 km/h) |
| 90 mph (144.84 km/h) | 94.83 mph (152.62 km/h) |
| 95 mph (152.89 km/h) | 100.1 mph (161.1 km/h) |
| 100 mph (160.93 km/h) | 105.37 mph (169.58 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1954 | 2270 | 2444 | 2553 | 2669 | 2752 | 2844 | 2952 | 3101 | 3251 | 3417 | 3550 | 3791 | 4057 | 4265 | 4398 | 4473 | 4748 | 5130 | 5961 |
Better Fuel Economy Factory Ratios Increased Power
