Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 130/60-21 | 160/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.14 (689.4) | 25.56 (649.2) | -1.58 (-40.2) -5.8% |
| Width inches (mm) | 5.12 (130) | 6.3 (160) | 1.18 (30) 23.1% |
| Circum. inches (mm) | 85.27 (2165.81) | 80.3 (2039.52) | -4.97 (-126.29) -5.8% |
| Sidewall Height inches (mm) | 3.07 (78) | 3.78 (96) | 0.71 (18) 23.1% |
| Revolutions per mile (km) | 743.07 (461.72) | 789.08 (490.31) | 46.01 (28.59) 6.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.83 mph (30.31 km/h) |
| 25 mph (40.23 km/h) | 23.54 mph (37.89 km/h) |
| 30 mph (48.28 km/h) | 28.25 mph (45.47 km/h) |
| 35 mph (56.33 km/h) | 32.96 mph (53.04 km/h) |
| 40 mph (64.37 km/h) | 37.67 mph (60.62 km/h) |
| 45 mph (72.42 km/h) | 42.38 mph (68.2 km/h) |
| 50 mph (80.47 km/h) | 47.08 mph (75.78 km/h) |
| 55 mph (88.51 km/h) | 51.79 mph (83.35 km/h) |
| 60 mph (96.56 km/h) | 56.5 mph (90.93 km/h) |
| 65 mph (104.61 km/h) | 61.21 mph (98.51 km/h) |
| 70 mph (112.65 km/h) | 65.92 mph (106.09 km/h) |
| 75 mph (120.7 km/h) | 70.63 mph (113.66 km/h) |
| 80 mph (128.75 km/h) | 75.34 mph (121.24 km/h) |
| 85 mph (136.79 km/h) | 80.04 mph (128.82 km/h) |
| 90 mph (144.84 km/h) | 84.75 mph (136.4 km/h) |
| 95 mph (152.89 km/h) | 89.46 mph (143.97 km/h) |
| 100 mph (160.93 km/h) | 94.17 mph (151.55 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
