Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/60-20 | 27/7.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.8 (706) | 27.07 (687.54) | -0.73 (-18.46) -2.6% |
| Width inches (mm) | 6.5 (165) | 7.52 (191) | 1.02 (26) 15.8% |
| Circum. inches (mm) | 87.32 (2217.96) | 85.04 (2159.97) | -2.28 (-57.99) -2.6% |
| Sidewall Height inches (mm) | 3.9 (99) | 3.53 (89.77) | -0.36 (-9.23) -9.3% |
| Revolutions per mile (km) | 725.6 (450.86) | 745.08 (462.97) | 19.48 (12.11) 2.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.48 mph (31.35 km/h) |
| 25 mph (40.23 km/h) | 24.35 mph (39.18 km/h) |
| 30 mph (48.28 km/h) | 29.22 mph (47.02 km/h) |
| 35 mph (56.33 km/h) | 34.08 mph (54.85 km/h) |
| 40 mph (64.37 km/h) | 38.95 mph (62.69 km/h) |
| 45 mph (72.42 km/h) | 43.82 mph (70.53 km/h) |
| 50 mph (80.47 km/h) | 48.69 mph (78.36 km/h) |
| 55 mph (88.51 km/h) | 53.56 mph (86.2 km/h) |
| 60 mph (96.56 km/h) | 58.43 mph (94.04 km/h) |
| 65 mph (104.61 km/h) | 63.3 mph (101.87 km/h) |
| 70 mph (112.65 km/h) | 68.17 mph (109.71 km/h) |
| 75 mph (120.7 km/h) | 73.04 mph (117.55 km/h) |
| 80 mph (128.75 km/h) | 77.91 mph (125.38 km/h) |
| 85 mph (136.79 km/h) | 82.78 mph (133.22 km/h) |
| 90 mph (144.84 km/h) | 87.65 mph (141.05 km/h) |
| 95 mph (152.89 km/h) | 92.52 mph (148.89 km/h) |
| 100 mph (160.93 km/h) | 97.39 mph (156.73 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1896 | 2203 | 2372 | 2477 | 2590 | 2671 | 2759 | 2864 | 3010 | 3155 | 3316 | 3445 | 3679 | 3937 | 4139 | 4268 | 4341 | 4607 | 4978 | 5785 |
Better Fuel Economy Factory Ratios Increased Power
