Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/60-16 | 180/55-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.5 (622.4) | 23.8 (604.4) | -0.71 (-18) -2.9% |
| Width inches (mm) | 7.09 (180) | 7.09 (180) | 0 (0) 0% |
| Circum. inches (mm) | 76.98 (1955.33) | 74.76 (1898.78) | -2.23 (-56.55) -2.9% |
| Sidewall Height inches (mm) | 4.25 (108) | 3.9 (99) | -0.35 (-9) -8.3% |
| Revolutions per mile (km) | 823.06 (511.42) | 847.57 (526.65) | 24.51 (15.23) 3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.42 mph (31.26 km/h) |
| 25 mph (40.23 km/h) | 24.28 mph (39.07 km/h) |
| 30 mph (48.28 km/h) | 29.13 mph (46.88 km/h) |
| 35 mph (56.33 km/h) | 33.99 mph (54.7 km/h) |
| 40 mph (64.37 km/h) | 38.84 mph (62.51 km/h) |
| 45 mph (72.42 km/h) | 43.7 mph (70.33 km/h) |
| 50 mph (80.47 km/h) | 48.55 mph (78.14 km/h) |
| 55 mph (88.51 km/h) | 53.41 mph (85.95 km/h) |
| 60 mph (96.56 km/h) | 58.26 mph (93.77 km/h) |
| 65 mph (104.61 km/h) | 63.12 mph (101.58 km/h) |
| 70 mph (112.65 km/h) | 67.98 mph (109.4 km/h) |
| 75 mph (120.7 km/h) | 72.83 mph (117.21 km/h) |
| 80 mph (128.75 km/h) | 77.69 mph (125.02 km/h) |
| 85 mph (136.79 km/h) | 82.54 mph (132.84 km/h) |
| 90 mph (144.84 km/h) | 87.4 mph (140.65 km/h) |
| 95 mph (152.89 km/h) | 92.25 mph (148.47 km/h) |
| 100 mph (160.93 km/h) | 97.11 mph (156.28 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2157 | 2506 | 2698 | 2818 | 2946 | 3038 | 3139 | 3258 | 3424 | 3589 | 3772 | 3919 | 4185 | 4479 | 4708 | 4855 | 4938 | 5241 | 5663 | 6581 |
Better Fuel Economy Factory Ratios Increased Power
