Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 130/90-18 | 130/80-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.21 (691.2) | 26.19 (665.2) | -1.02 (-26) -3.8% |
| Width inches (mm) | 5.12 (130) | 5.12 (130) | 0 (0) 0% |
| Circum. inches (mm) | 85.49 (2171.47) | 82.28 (2089.79) | -3.22 (-81.68) -3.8% |
| Sidewall Height inches (mm) | 4.61 (117) | 4.09 (104) | -0.51 (-13) -11.1% |
| Revolutions per mile (km) | 741.13 (460.52) | 770.1 (478.52) | 28.97 (18) 3.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.25 mph (30.98 km/h) |
| 25 mph (40.23 km/h) | 24.06 mph (38.72 km/h) |
| 30 mph (48.28 km/h) | 28.87 mph (46.46 km/h) |
| 35 mph (56.33 km/h) | 33.68 mph (54.21 km/h) |
| 40 mph (64.37 km/h) | 38.5 mph (61.95 km/h) |
| 45 mph (72.42 km/h) | 43.31 mph (69.7 km/h) |
| 50 mph (80.47 km/h) | 48.12 mph (77.44 km/h) |
| 55 mph (88.51 km/h) | 52.93 mph (85.18 km/h) |
| 60 mph (96.56 km/h) | 57.74 mph (92.93 km/h) |
| 65 mph (104.61 km/h) | 62.55 mph (100.67 km/h) |
| 70 mph (112.65 km/h) | 67.37 mph (108.42 km/h) |
| 75 mph (120.7 km/h) | 72.18 mph (116.16 km/h) |
| 80 mph (128.75 km/h) | 76.99 mph (123.9 km/h) |
| 85 mph (136.79 km/h) | 81.8 mph (131.65 km/h) |
| 90 mph (144.84 km/h) | 86.61 mph (139.39 km/h) |
| 95 mph (152.89 km/h) | 91.43 mph (147.14 km/h) |
| 100 mph (160.93 km/h) | 96.24 mph (154.88 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
