Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/35-28 | 275/40-28 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.96 (938.7) | 36.66 (931.2) | -0.3 (-7.5) -0.8% |
| Width inches (mm) | 12.8 (325) | 10.83 (275) | -1.97 (-50) -15.4% |
| Circum. inches (mm) | 116.1 (2949.01) | 115.18 (2925.45) | -0.93 (-23.56) -0.8% |
| Sidewall Height inches (mm) | 4.48 (113.75) | 4.33 (110) | -0.15 (-3.75) -3.3% |
| Revolutions per mile (km) | 545.72 (339.1) | 550.12 (341.83) | 4.4 (2.73) 0.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.84 mph (31.93 km/h) |
| 25 mph (40.23 km/h) | 24.8 mph (39.91 km/h) |
| 30 mph (48.28 km/h) | 29.76 mph (47.89 km/h) |
| 35 mph (56.33 km/h) | 34.72 mph (55.88 km/h) |
| 40 mph (64.37 km/h) | 39.68 mph (63.86 km/h) |
| 45 mph (72.42 km/h) | 44.64 mph (71.84 km/h) |
| 50 mph (80.47 km/h) | 49.6 mph (79.82 km/h) |
| 55 mph (88.51 km/h) | 54.56 mph (87.81 km/h) |
| 60 mph (96.56 km/h) | 59.52 mph (95.79 km/h) |
| 65 mph (104.61 km/h) | 64.48 mph (103.77 km/h) |
| 70 mph (112.65 km/h) | 69.44 mph (111.75 km/h) |
| 75 mph (120.7 km/h) | 74.4 mph (119.74 km/h) |
| 80 mph (128.75 km/h) | 79.36 mph (127.72 km/h) |
| 85 mph (136.79 km/h) | 84.32 mph (135.7 km/h) |
| 90 mph (144.84 km/h) | 89.28 mph (143.68 km/h) |
| 95 mph (152.89 km/h) | 94.24 mph (151.67 km/h) |
| 100 mph (160.93 km/h) | 99.2 mph (159.65 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1400 | 1626 | 1751 | 1829 | 1912 | 1972 | 2037 | 2115 | 2222 | 2329 | 2448 | 2544 | 2716 | 2907 | 3056 | 3151 | 3205 | 3402 | 3676 | 4271 |
Better Fuel Economy Factory Ratios Increased Power
