Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/45-21 | 295/35-23 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.1 (789.9) | 31.13 (790.7) | 0.03 (0.8) 0.1% |
| Width inches (mm) | 11.22 (285) | 11.61 (295) | 0.39 (10) 3.5% |
| Circum. inches (mm) | 97.7 (2481.54) | 97.8 (2484.06) | 0.1 (2.51) 0.1% |
| Sidewall Height inches (mm) | 5.05 (128.25) | 4.06 (103.25) | -0.98 (-25) -19.5% |
| Revolutions per mile (km) | 648.53 (402.97) | 647.87 (402.57) | -0.66 (-0.41) -0.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.02 mph (32.22 km/h) |
| 25 mph (40.23 km/h) | 25.03 mph (40.27 km/h) |
| 30 mph (48.28 km/h) | 30.03 mph (48.33 km/h) |
| 35 mph (56.33 km/h) | 35.04 mph (56.38 km/h) |
| 40 mph (64.37 km/h) | 40.04 mph (64.44 km/h) |
| 45 mph (72.42 km/h) | 45.05 mph (72.49 km/h) |
| 50 mph (80.47 km/h) | 50.05 mph (80.55 km/h) |
| 55 mph (88.51 km/h) | 55.06 mph (88.6 km/h) |
| 60 mph (96.56 km/h) | 60.06 mph (96.66 km/h) |
| 65 mph (104.61 km/h) | 65.07 mph (104.71 km/h) |
| 70 mph (112.65 km/h) | 70.07 mph (112.77 km/h) |
| 75 mph (120.7 km/h) | 75.08 mph (120.82 km/h) |
| 80 mph (128.75 km/h) | 80.08 mph (128.88 km/h) |
| 85 mph (136.79 km/h) | 85.09 mph (136.93 km/h) |
| 90 mph (144.84 km/h) | 90.09 mph (144.99 km/h) |
| 95 mph (152.89 km/h) | 95.1 mph (153.04 km/h) |
| 100 mph (160.93 km/h) | 100.1 mph (161.1 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1649 | 1915 | 2063 | 2154 | 2252 | 2322 | 2399 | 2491 | 2617 | 2743 | 2883 | 2996 | 3199 | 3424 | 3599 | 3711 | 3774 | 4006 | 4329 | 5030 |
Better Fuel Economy Factory Ratios Increased Power
