Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/40-21 | 295/35-21 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.98 (761.4) | 29.13 (739.9) | -0.85 (-21.5) -2.8% |
| Width inches (mm) | 11.22 (285) | 11.61 (295) | 0.39 (10) 3.5% |
| Circum. inches (mm) | 94.17 (2392.01) | 91.51 (2324.46) | -2.66 (-67.54) -2.8% |
| Sidewall Height inches (mm) | 4.49 (114) | 4.06 (103.25) | -0.42 (-10.75) -9.4% |
| Revolutions per mile (km) | 672.8 (418.06) | 692.35 (430.21) | 19.55 (12.15) 2.9% |
295/35-21 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.44 mph (31.28 km/h) |
| 25 mph (40.23 km/h) | 24.29 mph (39.1 km/h) |
| 30 mph (48.28 km/h) | 29.15 mph (46.92 km/h) |
| 35 mph (56.33 km/h) | 34.01 mph (54.74 km/h) |
| 40 mph (64.37 km/h) | 38.87 mph (62.56 km/h) |
| 45 mph (72.42 km/h) | 43.73 mph (70.38 km/h) |
| 50 mph (80.47 km/h) | 48.59 mph (78.2 km/h) |
| 55 mph (88.51 km/h) | 53.45 mph (86.01 km/h) |
| 60 mph (96.56 km/h) | 58.31 mph (93.83 km/h) |
| 65 mph (104.61 km/h) | 63.16 mph (101.65 km/h) |
| 70 mph (112.65 km/h) | 68.02 mph (109.47 km/h) |
| 75 mph (120.7 km/h) | 72.88 mph (117.29 km/h) |
| 80 mph (128.75 km/h) | 77.74 mph (125.11 km/h) |
| 85 mph (136.79 km/h) | 82.6 mph (132.93 km/h) |
| 90 mph (144.84 km/h) | 87.46 mph (140.75 km/h) |
| 95 mph (152.89 km/h) | 92.32 mph (148.57 km/h) |
| 100 mph (160.93 km/h) | 97.18 mph (156.39 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1762 | 2047 | 2204 | 2302 | 2407 | 2482 | 2564 | 2662 | 2797 | 2932 | 3081 | 3201 | 3419 | 3659 | 3846 | 3966 | 4034 | 4281 | 4626 | 5376 |
Better Fuel Economy Factory Ratios Increased Power
