Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/60-20 | 265/55-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.05 (814) | 31.48 (799.5) | -0.57 (-14.5) -1.8% |
| Width inches (mm) | 10.04 (255) | 10.43 (265) | 0.39 (10) 3.9% |
| Circum. inches (mm) | 100.68 (2557.26) | 98.89 (2511.7) | -1.79 (-45.55) -1.8% |
| Sidewall Height inches (mm) | 6.02 (153) | 5.74 (145.75) | -0.29 (-7.25) -4.7% |
| Revolutions per mile (km) | 629.32 (391.04) | 640.74 (398.14) | 11.41 (7.09) 1.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.64 mph (31.61 km/h) |
| 25 mph (40.23 km/h) | 24.55 mph (39.52 km/h) |
| 30 mph (48.28 km/h) | 29.47 mph (47.42 km/h) |
| 35 mph (56.33 km/h) | 34.38 mph (55.32 km/h) |
| 40 mph (64.37 km/h) | 39.29 mph (63.23 km/h) |
| 45 mph (72.42 km/h) | 44.2 mph (71.13 km/h) |
| 50 mph (80.47 km/h) | 49.11 mph (79.03 km/h) |
| 55 mph (88.51 km/h) | 54.02 mph (86.94 km/h) |
| 60 mph (96.56 km/h) | 58.93 mph (94.84 km/h) |
| 65 mph (104.61 km/h) | 63.84 mph (102.74 km/h) |
| 70 mph (112.65 km/h) | 68.75 mph (110.65 km/h) |
| 75 mph (120.7 km/h) | 73.66 mph (118.55 km/h) |
| 80 mph (128.75 km/h) | 78.57 mph (126.45 km/h) |
| 85 mph (136.79 km/h) | 83.49 mph (134.36 km/h) |
| 90 mph (144.84 km/h) | 88.4 mph (142.26 km/h) |
| 95 mph (152.89 km/h) | 93.31 mph (150.16 km/h) |
| 100 mph (160.93 km/h) | 98.22 mph (158.07 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1631 | 1894 | 2040 | 2130 | 2227 | 2297 | 2373 | 2463 | 2588 | 2713 | 2852 | 2963 | 3164 | 3386 | 3559 | 3670 | 3733 | 3962 | 4281 | 4975 |
Better Fuel Economy Factory Ratios Increased Power
