Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/30-21 | 235/35-21 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.26 (692.4) | 27.48 (697.9) | 0.22 (5.5) 0.8% |
| Width inches (mm) | 10.43 (265) | 9.25 (235) | -1.18 (-30) -11.3% |
| Circum. inches (mm) | 85.64 (2175.24) | 86.32 (2192.52) | 0.68 (17.28) 0.8% |
| Sidewall Height inches (mm) | 3.13 (79.5) | 3.24 (82.25) | 0.11 (2.75) 3.5% |
| Revolutions per mile (km) | 739.85 (459.72) | 734.02 (456.1) | -5.83 (-3.62) -0.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.16 mph (32.44 km/h) |
| 25 mph (40.23 km/h) | 25.2 mph (40.55 km/h) |
| 30 mph (48.28 km/h) | 30.24 mph (48.66 km/h) |
| 35 mph (56.33 km/h) | 35.28 mph (56.77 km/h) |
| 40 mph (64.37 km/h) | 40.32 mph (64.89 km/h) |
| 45 mph (72.42 km/h) | 45.36 mph (73 km/h) |
| 50 mph (80.47 km/h) | 50.4 mph (81.11 km/h) |
| 55 mph (88.51 km/h) | 55.44 mph (89.22 km/h) |
| 60 mph (96.56 km/h) | 60.48 mph (97.33 km/h) |
| 65 mph (104.61 km/h) | 65.52 mph (105.44 km/h) |
| 70 mph (112.65 km/h) | 70.56 mph (113.55 km/h) |
| 75 mph (120.7 km/h) | 75.6 mph (121.66 km/h) |
| 80 mph (128.75 km/h) | 80.64 mph (129.77 km/h) |
| 85 mph (136.79 km/h) | 85.68 mph (137.88 km/h) |
| 90 mph (144.84 km/h) | 90.71 mph (145.99 km/h) |
| 95 mph (152.89 km/h) | 95.75 mph (154.1 km/h) |
| 100 mph (160.93 km/h) | 100.79 mph (162.21 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1868 | 2170 | 2337 | 2440 | 2552 | 2631 | 2718 | 2822 | 2965 | 3108 | 3267 | 3394 | 3625 | 3879 | 4078 | 4205 | 4276 | 4539 | 4904 | 5699 |
Better Fuel Economy Factory Ratios Increased Power
