Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/65-20 | 205/60-21 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.49 (774.5) | 30.69 (779.4) | 0.19 (4.9) 0.6% |
| Width inches (mm) | 8.07 (205) | 8.07 (205) | 0 (0) 0% |
| Circum. inches (mm) | 95.79 (2433.16) | 96.4 (2448.56) | 0.61 (15.39) 0.6% |
| Sidewall Height inches (mm) | 5.25 (133.25) | 4.84 (123) | -0.4 (-10.25) -7.7% |
| Revolutions per mile (km) | 661.42 (410.99) | 657.26 (408.4) | -4.16 (-2.58) -0.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.13 mph (32.39 km/h) |
| 25 mph (40.23 km/h) | 25.16 mph (40.49 km/h) |
| 30 mph (48.28 km/h) | 30.19 mph (48.59 km/h) |
| 35 mph (56.33 km/h) | 35.22 mph (56.68 km/h) |
| 40 mph (64.37 km/h) | 40.25 mph (64.78 km/h) |
| 45 mph (72.42 km/h) | 45.28 mph (72.88 km/h) |
| 50 mph (80.47 km/h) | 50.32 mph (80.98 km/h) |
| 55 mph (88.51 km/h) | 55.35 mph (89.07 km/h) |
| 60 mph (96.56 km/h) | 60.38 mph (97.17 km/h) |
| 65 mph (104.61 km/h) | 65.41 mph (105.27 km/h) |
| 70 mph (112.65 km/h) | 70.44 mph (113.37 km/h) |
| 75 mph (120.7 km/h) | 75.47 mph (121.46 km/h) |
| 80 mph (128.75 km/h) | 80.51 mph (129.56 km/h) |
| 85 mph (136.79 km/h) | 85.54 mph (137.66 km/h) |
| 90 mph (144.84 km/h) | 90.57 mph (145.76 km/h) |
| 95 mph (152.89 km/h) | 95.6 mph (153.86 km/h) |
| 100 mph (160.93 km/h) | 100.63 mph (161.95 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1673 | 1943 | 2093 | 2185 | 2285 | 2356 | 2434 | 2527 | 2655 | 2783 | 2925 | 3039 | 3246 | 3473 | 3651 | 3765 | 3829 | 4064 | 4391 | 5103 |
Better Fuel Economy Factory Ratios Increased Power
