Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 200/70-15 | 180/66-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.02 (661) | 25.35 (644) | -0.67 (-17) -2.6% |
| Width inches (mm) | 7.87 (200) | 7.09 (180) | -0.79 (-20) -10% |
| Circum. inches (mm) | 81.76 (2076.59) | 79.65 (2023.19) | -2.1 (-53.41) -2.6% |
| Sidewall Height inches (mm) | 5.51 (140) | 4.68 (118.8) | -0.83 (-21.2) -15.1% |
| Revolutions per mile (km) | 774.99 (481.56) | 795.45 (494.27) | 20.46 (12.71) 2.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.49 mph (31.36 km/h) |
| 25 mph (40.23 km/h) | 24.36 mph (39.2 km/h) |
| 30 mph (48.28 km/h) | 29.23 mph (47.04 km/h) |
| 35 mph (56.33 km/h) | 34.1 mph (54.88 km/h) |
| 40 mph (64.37 km/h) | 38.97 mph (62.72 km/h) |
| 45 mph (72.42 km/h) | 43.84 mph (70.56 km/h) |
| 50 mph (80.47 km/h) | 48.71 mph (78.4 km/h) |
| 55 mph (88.51 km/h) | 53.59 mph (86.24 km/h) |
| 60 mph (96.56 km/h) | 58.46 mph (94.08 km/h) |
| 65 mph (104.61 km/h) | 63.33 mph (101.92 km/h) |
| 70 mph (112.65 km/h) | 68.2 mph (109.76 km/h) |
| 75 mph (120.7 km/h) | 73.07 mph (117.6 km/h) |
| 80 mph (128.75 km/h) | 77.94 mph (125.44 km/h) |
| 85 mph (136.79 km/h) | 82.81 mph (133.28 km/h) |
| 90 mph (144.84 km/h) | 87.69 mph (141.12 km/h) |
| 95 mph (152.89 km/h) | 92.56 mph (148.96 km/h) |
| 100 mph (160.93 km/h) | 97.43 mph (156.8 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | 2352 | 2532 | 2644 | 2765 | 2851 | 2946 | 3058 | 3213 | 3368 | 3540 | 3678 | 3928 | 4204 | 4419 | 4557 | 4634 | 4919 | 5315 | 6176 |
Better Fuel Economy Factory Ratios Increased Power
