Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/80-15 | 35/11.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.47 (901) | 34.94 (887.6) | -0.53 (-13.4) -1.5% |
| Width inches (mm) | 12.8 (325) | 11.5 (292) | -1.3 (-33) -10.2% |
| Circum. inches (mm) | 111.44 (2830.57) | 109.78 (2788.48) | -1.66 (-42.1) -1.5% |
| Sidewall Height inches (mm) | 10.24 (260) | 7.47 (189.8) | -2.76 (-70.2) -27% |
| Revolutions per mile (km) | 568.56 (353.28) | 577.14 (358.62) | 8.58 (5.33) 1.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.7 mph (31.71 km/h) |
| 25 mph (40.23 km/h) | 24.63 mph (39.64 km/h) |
| 30 mph (48.28 km/h) | 29.55 mph (47.56 km/h) |
| 35 mph (56.33 km/h) | 34.48 mph (55.49 km/h) |
| 40 mph (64.37 km/h) | 39.41 mph (63.42 km/h) |
| 45 mph (72.42 km/h) | 44.33 mph (71.34 km/h) |
| 50 mph (80.47 km/h) | 49.26 mph (79.27 km/h) |
| 55 mph (88.51 km/h) | 54.18 mph (87.2 km/h) |
| 60 mph (96.56 km/h) | 59.11 mph (95.12 km/h) |
| 65 mph (104.61 km/h) | 64.03 mph (103.05 km/h) |
| 70 mph (112.65 km/h) | 68.96 mph (110.98 km/h) |
| 75 mph (120.7 km/h) | 73.88 mph (118.91 km/h) |
| 80 mph (128.75 km/h) | 78.81 mph (126.83 km/h) |
| 85 mph (136.79 km/h) | 83.74 mph (134.76 km/h) |
| 90 mph (144.84 km/h) | 88.66 mph (142.69 km/h) |
| 95 mph (152.89 km/h) | 93.59 mph (150.61 km/h) |
| 100 mph (160.93 km/h) | 98.51 mph (158.54 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1469 | 1706 | 1837 | 1919 | 2006 | 2069 | 2137 | 2219 | 2331 | 2444 | 2569 | 2669 | 2850 | 3050 | 3206 | 3306 | 3362 | 3569 | 3856 | 4481 |
Better Fuel Economy Factory Ratios Increased Power
