Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/35-21 | 285/35-21 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.3 (718.9) | 28.85 (732.9) | 0.55 (14) 1.9% |
| Width inches (mm) | 10.43 (265) | 11.22 (285) | 0.79 (20) 7.5% |
| Circum. inches (mm) | 88.92 (2258.49) | 90.65 (2302.47) | 1.73 (43.98) 1.9% |
| Sidewall Height inches (mm) | 3.65 (92.75) | 3.93 (99.75) | 0.28 (7) 7.5% |
| Revolutions per mile (km) | 712.57 (442.77) | 698.96 (434.31) | -13.61 (-8.46) -1.9% |
285/35-21 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.39 mph (32.81 km/h) |
| 25 mph (40.23 km/h) | 25.49 mph (41.02 km/h) |
| 30 mph (48.28 km/h) | 30.58 mph (49.22 km/h) |
| 35 mph (56.33 km/h) | 35.68 mph (57.42 km/h) |
| 40 mph (64.37 km/h) | 40.78 mph (65.63 km/h) |
| 45 mph (72.42 km/h) | 45.88 mph (73.83 km/h) |
| 50 mph (80.47 km/h) | 50.97 mph (82.03 km/h) |
| 55 mph (88.51 km/h) | 56.07 mph (90.24 km/h) |
| 60 mph (96.56 km/h) | 61.17 mph (98.44 km/h) |
| 65 mph (104.61 km/h) | 66.27 mph (106.64 km/h) |
| 70 mph (112.65 km/h) | 71.36 mph (114.85 km/h) |
| 75 mph (120.7 km/h) | 76.46 mph (123.05 km/h) |
| 80 mph (128.75 km/h) | 81.56 mph (131.26 km/h) |
| 85 mph (136.79 km/h) | 86.66 mph (139.46 km/h) |
| 90 mph (144.84 km/h) | 91.75 mph (147.66 km/h) |
| 95 mph (152.89 km/h) | 96.85 mph (155.87 km/h) |
| 100 mph (160.93 km/h) | 101.95 mph (164.07 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1779 | 2066 | 2225 | 2324 | 2430 | 2505 | 2589 | 2687 | 2823 | 2960 | 3111 | 3232 | 3451 | 3694 | 3883 | 4004 | 4072 | 4322 | 4670 | 5427 |
Better Fuel Economy Factory Ratios Increased Power
