Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/40-21 | 295/45-21 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.29 (769.4) | 31.45 (798.9) | 1.16 (29.5) 3.8% |
| Width inches (mm) | 11.61 (295) | 11.61 (295) | 0 (0) 0% |
| Circum. inches (mm) | 95.16 (2417.14) | 98.81 (2509.82) | 3.65 (92.68) 3.8% |
| Sidewall Height inches (mm) | 4.65 (118) | 5.23 (132.75) | 0.58 (14.75) 12.5% |
| Revolutions per mile (km) | 665.8 (413.71) | 641.22 (398.43) | -24.59 (-15.28) -3.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.77 mph (33.42 km/h) |
| 25 mph (40.23 km/h) | 25.96 mph (41.78 km/h) |
| 30 mph (48.28 km/h) | 31.15 mph (50.13 km/h) |
| 35 mph (56.33 km/h) | 36.34 mph (58.49 km/h) |
| 40 mph (64.37 km/h) | 41.53 mph (66.84 km/h) |
| 45 mph (72.42 km/h) | 46.73 mph (75.2 km/h) |
| 50 mph (80.47 km/h) | 51.92 mph (83.55 km/h) |
| 55 mph (88.51 km/h) | 57.11 mph (91.91 km/h) |
| 60 mph (96.56 km/h) | 62.3 mph (100.26 km/h) |
| 65 mph (104.61 km/h) | 67.49 mph (108.62 km/h) |
| 70 mph (112.65 km/h) | 72.68 mph (116.97 km/h) |
| 75 mph (120.7 km/h) | 77.88 mph (125.33 km/h) |
| 80 mph (128.75 km/h) | 83.07 mph (133.68 km/h) |
| 85 mph (136.79 km/h) | 88.26 mph (142.04 km/h) |
| 90 mph (144.84 km/h) | 93.45 mph (150.39 km/h) |
| 95 mph (152.89 km/h) | 98.64 mph (158.75 km/h) |
| 100 mph (160.93 km/h) | 103.83 mph (167.11 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1632 | 1896 | 2041 | 2132 | 2229 | 2298 | 2375 | 2465 | 2590 | 2715 | 2854 | 2965 | 3166 | 3389 | 3562 | 3673 | 3736 | 3965 | 4284 | 4979 |
Better Fuel Economy Factory Ratios Increased Power
