Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/40-21 | 275/35-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.66 (753.4) | 29.58 (751.3) | -0.08 (-2.1) -0.3% |
| Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
| Circum. inches (mm) | 93.18 (2366.88) | 92.92 (2360.28) | -0.26 (-6.6) -0.3% |
| Sidewall Height inches (mm) | 4.33 (110) | 3.79 (96.25) | -0.54 (-13.75) -12.5% |
| Revolutions per mile (km) | 679.94 (422.5) | 681.84 (423.68) | 1.9 (1.18) 0.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.94 mph (32.1 km/h) |
| 25 mph (40.23 km/h) | 24.93 mph (40.12 km/h) |
| 30 mph (48.28 km/h) | 29.92 mph (48.15 km/h) |
| 35 mph (56.33 km/h) | 34.9 mph (56.17 km/h) |
| 40 mph (64.37 km/h) | 39.89 mph (64.19 km/h) |
| 45 mph (72.42 km/h) | 44.87 mph (72.22 km/h) |
| 50 mph (80.47 km/h) | 49.86 mph (80.24 km/h) |
| 55 mph (88.51 km/h) | 54.85 mph (88.27 km/h) |
| 60 mph (96.56 km/h) | 59.83 mph (96.29 km/h) |
| 65 mph (104.61 km/h) | 64.82 mph (104.32 km/h) |
| 70 mph (112.65 km/h) | 69.8 mph (112.34 km/h) |
| 75 mph (120.7 km/h) | 74.79 mph (120.36 km/h) |
| 80 mph (128.75 km/h) | 79.78 mph (128.39 km/h) |
| 85 mph (136.79 km/h) | 84.76 mph (136.41 km/h) |
| 90 mph (144.84 km/h) | 89.75 mph (144.44 km/h) |
| 95 mph (152.89 km/h) | 94.74 mph (152.46 km/h) |
| 100 mph (160.93 km/h) | 99.72 mph (160.49 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1735 | 2016 | 2171 | 2267 | 2370 | 2444 | 2525 | 2621 | 2754 | 2887 | 3035 | 3153 | 3367 | 3603 | 3788 | 3906 | 3972 | 4216 | 4556 | 5294 |
Better Fuel Economy Factory Ratios Increased Power
