Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/35-21 | 265/35-21 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.85 (732.9) | 28.3 (718.9) | -0.55 (-14) -1.9% |
| Width inches (mm) | 11.22 (285) | 10.43 (265) | -0.79 (-20) -7% |
| Circum. inches (mm) | 90.65 (2302.47) | 88.92 (2258.49) | -1.73 (-43.98) -1.9% |
| Sidewall Height inches (mm) | 3.93 (99.75) | 3.65 (92.75) | -0.28 (-7) -7% |
| Revolutions per mile (km) | 698.96 (434.31) | 712.57 (442.77) | 13.61 (8.46) 1.9% |
265/35-21 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.62 mph (31.57 km/h) |
| 25 mph (40.23 km/h) | 24.52 mph (39.47 km/h) |
| 30 mph (48.28 km/h) | 29.43 mph (47.36 km/h) |
| 35 mph (56.33 km/h) | 34.33 mph (55.25 km/h) |
| 40 mph (64.37 km/h) | 39.24 mph (63.14 km/h) |
| 45 mph (72.42 km/h) | 44.14 mph (71.04 km/h) |
| 50 mph (80.47 km/h) | 49.04 mph (78.93 km/h) |
| 55 mph (88.51 km/h) | 53.95 mph (86.82 km/h) |
| 60 mph (96.56 km/h) | 58.85 mph (94.72 km/h) |
| 65 mph (104.61 km/h) | 63.76 mph (102.61 km/h) |
| 70 mph (112.65 km/h) | 68.66 mph (110.5 km/h) |
| 75 mph (120.7 km/h) | 73.57 mph (118.4 km/h) |
| 80 mph (128.75 km/h) | 78.47 mph (126.29 km/h) |
| 85 mph (136.79 km/h) | 83.38 mph (134.18 km/h) |
| 90 mph (144.84 km/h) | 88.28 mph (142.07 km/h) |
| 95 mph (152.89 km/h) | 93.19 mph (149.97 km/h) |
| 100 mph (160.93 km/h) | 98.09 mph (157.86 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1813 | 2107 | 2269 | 2369 | 2477 | 2554 | 2639 | 2739 | 2878 | 3017 | 3171 | 3295 | 3519 | 3766 | 3959 | 4082 | 4151 | 4406 | 4761 | 5533 |
Better Fuel Economy Factory Ratios Increased Power
