Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/65-20 | 265/55-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.05 (839.5) | 31.48 (799.5) | -1.57 (-40) -4.8% |
| Width inches (mm) | 10.04 (255) | 10.43 (265) | 0.39 (10) 3.9% |
| Circum. inches (mm) | 103.83 (2637.37) | 98.89 (2511.7) | -4.95 (-125.66) -4.8% |
| Sidewall Height inches (mm) | 6.53 (165.75) | 5.74 (145.75) | -0.79 (-20) -12.1% |
| Revolutions per mile (km) | 610.21 (379.17) | 640.74 (398.14) | 30.53 (18.97) 5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.05 mph (30.65 km/h) |
| 25 mph (40.23 km/h) | 23.81 mph (38.32 km/h) |
| 30 mph (48.28 km/h) | 28.57 mph (45.98 km/h) |
| 35 mph (56.33 km/h) | 33.33 mph (53.64 km/h) |
| 40 mph (64.37 km/h) | 38.09 mph (61.31 km/h) |
| 45 mph (72.42 km/h) | 42.86 mph (68.97 km/h) |
| 50 mph (80.47 km/h) | 47.62 mph (76.63 km/h) |
| 55 mph (88.51 km/h) | 52.38 mph (84.3 km/h) |
| 60 mph (96.56 km/h) | 57.14 mph (91.96 km/h) |
| 65 mph (104.61 km/h) | 61.9 mph (99.62 km/h) |
| 70 mph (112.65 km/h) | 66.66 mph (107.29 km/h) |
| 75 mph (120.7 km/h) | 71.43 mph (114.95 km/h) |
| 80 mph (128.75 km/h) | 76.19 mph (122.61 km/h) |
| 85 mph (136.79 km/h) | 80.95 mph (130.28 km/h) |
| 90 mph (144.84 km/h) | 85.71 mph (137.94 km/h) |
| 95 mph (152.89 km/h) | 90.47 mph (145.6 km/h) |
| 100 mph (160.93 km/h) | 95.24 mph (153.27 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
