Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-14 | 130/80-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.34 (643.6) | 26.19 (665.2) | 0.85 (21.6) 3.4% |
| Width inches (mm) | 7.09 (180) | 5.12 (130) | -1.97 (-50) -27.8% |
| Circum. inches (mm) | 79.6 (2021.93) | 82.28 (2089.79) | 2.67 (67.86) 3.4% |
| Sidewall Height inches (mm) | 5.67 (144) | 4.09 (104) | -1.57 (-40) -27.8% |
| Revolutions per mile (km) | 795.94 (494.58) | 770.1 (478.52) | -25.85 (-16.06) -3.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.67 mph (33.27 km/h) |
| 25 mph (40.23 km/h) | 25.84 mph (41.58 km/h) |
| 30 mph (48.28 km/h) | 31.01 mph (49.9 km/h) |
| 35 mph (56.33 km/h) | 36.17 mph (58.22 km/h) |
| 40 mph (64.37 km/h) | 41.34 mph (66.53 km/h) |
| 45 mph (72.42 km/h) | 46.51 mph (74.85 km/h) |
| 50 mph (80.47 km/h) | 51.68 mph (83.17 km/h) |
| 55 mph (88.51 km/h) | 56.85 mph (91.48 km/h) |
| 60 mph (96.56 km/h) | 62.01 mph (99.8 km/h) |
| 65 mph (104.61 km/h) | 67.18 mph (108.12 km/h) |
| 70 mph (112.65 km/h) | 72.35 mph (116.44 km/h) |
| 75 mph (120.7 km/h) | 77.52 mph (124.75 km/h) |
| 80 mph (128.75 km/h) | 82.68 mph (133.07 km/h) |
| 85 mph (136.79 km/h) | 87.85 mph (141.39 km/h) |
| 90 mph (144.84 km/h) | 93.02 mph (149.7 km/h) |
| 95 mph (152.89 km/h) | 98.19 mph (158.02 km/h) |
| 100 mph (160.93 km/h) | 103.36 mph (166.34 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1960 | 2277 | 2452 | 2560 | 2677 | 2760 | 2852 | 2960 | 3111 | 3261 | 3427 | 3561 | 3803 | 4070 | 4278 | 4412 | 4487 | 4762 | 5145 | 5979 |
Better Fuel Economy Factory Ratios Increased Power
