Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/35-15 | 355/30-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.58 (573.5) | 28.39 (721) | 5.81 (147.5) 25.7% |
| Width inches (mm) | 10.83 (275) | 13.98 (355) | 3.15 (80) 29.1% |
| Circum. inches (mm) | 70.93 (1801.7) | 89.18 (2265.09) | 18.24 (463.38) 25.7% |
| Sidewall Height inches (mm) | 3.79 (96.25) | 4.19 (106.5) | 0.4 (10.25) 10.6% |
| Revolutions per mile (km) | 893.23 (555.03) | 710.5 (441.48) | -182.74 (-113.55) -20.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.14 mph (40.47 km/h) |
| 25 mph (40.23 km/h) | 31.43 mph (50.58 km/h) |
| 30 mph (48.28 km/h) | 37.72 mph (60.7 km/h) |
| 35 mph (56.33 km/h) | 44 mph (70.81 km/h) |
| 40 mph (64.37 km/h) | 50.29 mph (80.93 km/h) |
| 45 mph (72.42 km/h) | 56.57 mph (91.05 km/h) |
| 50 mph (80.47 km/h) | 62.86 mph (101.16 km/h) |
| 55 mph (88.51 km/h) | 69.15 mph (111.28 km/h) |
| 60 mph (96.56 km/h) | 75.43 mph (121.4 km/h) |
| 65 mph (104.61 km/h) | 81.72 mph (131.51 km/h) |
| 70 mph (112.65 km/h) | 88 mph (141.63 km/h) |
| 75 mph (120.7 km/h) | 94.29 mph (151.74 km/h) |
| 80 mph (128.75 km/h) | 100.58 mph (161.86 km/h) |
| 85 mph (136.79 km/h) | 106.86 mph (171.98 km/h) |
| 90 mph (144.84 km/h) | 113.15 mph (182.09 km/h) |
| 95 mph (152.89 km/h) | 119.43 mph (192.21 km/h) |
| 100 mph (160.93 km/h) | 125.72 mph (202.33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1808 | 2100 | 2262 | 2362 | 2470 | 2547 | 2631 | 2731 | 2870 | 3008 | 3162 | 3285 | 3508 | 3755 | 3947 | 4070 | 4139 | 4393 | 4747 | 5517 |
Better Fuel Economy Factory Ratios Increased Power
