Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/60-20 | 27/13.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.8 (706) | 27.02 (686.36) | -0.77 (-19.64) -2.8% |
| Width inches (mm) | 6.5 (165) | 13.5 (343) | 7.01 (178) 107.9% |
| Circum. inches (mm) | 87.32 (2217.96) | 84.89 (2156.26) | -2.43 (-61.7) -2.8% |
| Sidewall Height inches (mm) | 3.9 (99) | 3.51 (89.18) | -0.39 (-9.82) -9.9% |
| Revolutions per mile (km) | 725.6 (450.86) | 746.36 (463.76) | 20.76 (12.9) 2.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.44 mph (31.29 km/h) |
| 25 mph (40.23 km/h) | 24.3 mph (39.11 km/h) |
| 30 mph (48.28 km/h) | 29.17 mph (46.94 km/h) |
| 35 mph (56.33 km/h) | 34.03 mph (54.76 km/h) |
| 40 mph (64.37 km/h) | 38.89 mph (62.58 km/h) |
| 45 mph (72.42 km/h) | 43.75 mph (70.41 km/h) |
| 50 mph (80.47 km/h) | 48.61 mph (78.23 km/h) |
| 55 mph (88.51 km/h) | 53.47 mph (86.05 km/h) |
| 60 mph (96.56 km/h) | 58.33 mph (93.87 km/h) |
| 65 mph (104.61 km/h) | 63.19 mph (101.7 km/h) |
| 70 mph (112.65 km/h) | 68.05 mph (109.52 km/h) |
| 75 mph (120.7 km/h) | 72.91 mph (117.34 km/h) |
| 80 mph (128.75 km/h) | 77.77 mph (125.17 km/h) |
| 85 mph (136.79 km/h) | 82.64 mph (132.99 km/h) |
| 90 mph (144.84 km/h) | 87.5 mph (140.81 km/h) |
| 95 mph (152.89 km/h) | 92.36 mph (148.63 km/h) |
| 100 mph (160.93 km/h) | 97.22 mph (156.46 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1899 | 2206 | 2376 | 2481 | 2594 | 2675 | 2764 | 2869 | 3015 | 3160 | 3322 | 3451 | 3686 | 3944 | 4146 | 4276 | 4348 | 4615 | 4987 | 5795 |
Better Fuel Economy Factory Ratios Increased Power
