Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 110/70-18 | 120/80-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.06 (611.2) | 25.56 (649.2) | 1.5 (38) 6.2% |
| Width inches (mm) | 4.33 (110) | 4.72 (120) | 0.39 (10) 9.1% |
| Circum. inches (mm) | 75.6 (1920.14) | 80.3 (2039.52) | 4.7 (119.38) 6.2% |
| Sidewall Height inches (mm) | 3.03 (77) | 3.78 (96) | 0.75 (19) 24.7% |
| Revolutions per mile (km) | 838.14 (520.79) | 789.08 (490.31) | -49.06 (-30.48) -5.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.24 mph (34.19 km/h) |
| 25 mph (40.23 km/h) | 26.55 mph (42.74 km/h) |
| 30 mph (48.28 km/h) | 31.87 mph (51.28 km/h) |
| 35 mph (56.33 km/h) | 37.18 mph (59.83 km/h) |
| 40 mph (64.37 km/h) | 42.49 mph (68.38 km/h) |
| 45 mph (72.42 km/h) | 47.8 mph (76.92 km/h) |
| 50 mph (80.47 km/h) | 53.11 mph (85.47 km/h) |
| 55 mph (88.51 km/h) | 58.42 mph (94.02 km/h) |
| 60 mph (96.56 km/h) | 63.73 mph (102.56 km/h) |
| 65 mph (104.61 km/h) | 69.04 mph (111.11 km/h) |
| 70 mph (112.65 km/h) | 74.35 mph (119.66 km/h) |
| 75 mph (120.7 km/h) | 79.66 mph (128.21 km/h) |
| 80 mph (128.75 km/h) | 84.97 mph (136.75 km/h) |
| 85 mph (136.79 km/h) | 90.28 mph (145.3 km/h) |
| 90 mph (144.84 km/h) | 95.6 mph (153.85 km/h) |
| 95 mph (152.89 km/h) | 100.91 mph (162.39 km/h) |
| 100 mph (160.93 km/h) | 106.22 mph (170.94 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2008 | 2333 | 2512 | 2623 | 2743 | 2828 | 2922 | 3033 | 3187 | 3341 | 3512 | 3649 | 3896 | 4170 | 4384 | 4520 | 4597 | 4879 | 5272 | 6127 |
Better Fuel Economy Factory Ratios Increased Power
