Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/35-21 | 275/20-21 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.3 (718.9) | 25.33 (643.4) | -2.97 (-75.5) -10.5% |
| Width inches (mm) | 10.43 (265) | 10.83 (275) | 0.39 (10) 3.8% |
| Circum. inches (mm) | 88.92 (2258.49) | 79.58 (2021.3) | -9.34 (-237.19) -10.5% |
| Sidewall Height inches (mm) | 3.65 (92.75) | 2.17 (55) | -1.49 (-37.75) -40.7% |
| Revolutions per mile (km) | 712.57 (442.77) | 796.19 (494.73) | 83.62 (51.96) 11.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.9 mph (28.81 km/h) |
| 25 mph (40.23 km/h) | 22.37 mph (36.01 km/h) |
| 30 mph (48.28 km/h) | 26.85 mph (43.21 km/h) |
| 35 mph (56.33 km/h) | 31.32 mph (50.41 km/h) |
| 40 mph (64.37 km/h) | 35.8 mph (57.61 km/h) |
| 45 mph (72.42 km/h) | 40.27 mph (64.81 km/h) |
| 50 mph (80.47 km/h) | 44.75 mph (72.02 km/h) |
| 55 mph (88.51 km/h) | 49.22 mph (79.22 km/h) |
| 60 mph (96.56 km/h) | 53.7 mph (86.42 km/h) |
| 65 mph (104.61 km/h) | 58.17 mph (93.62 km/h) |
| 70 mph (112.65 km/h) | 62.65 mph (100.82 km/h) |
| 75 mph (120.7 km/h) | 67.12 mph (108.02 km/h) |
| 80 mph (128.75 km/h) | 71.6 mph (115.23 km/h) |
| 85 mph (136.79 km/h) | 76.07 mph (122.43 km/h) |
| 90 mph (144.84 km/h) | 80.55 mph (129.63 km/h) |
| 95 mph (152.89 km/h) | 85.02 mph (136.83 km/h) |
| 100 mph (160.93 km/h) | 89.5 mph (144.03 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2354 | 2535 | 2647 | 2768 | 2854 | 2949 | 3061 | 3216 | 3371 | 3544 | 3682 | 3932 | 4208 | 4423 | 4561 | 4639 | 4923 | 5320 | 6182 |
Better Fuel Economy Factory Ratios Increased Power
