Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 33/11.5-15 | 305/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.93 (836.52) | 27.01 (686) | -5.93 (-150.52) -18% |
| Width inches (mm) | 11.5 (292) | 12.01 (305) | 0.51 (13) 4.5% |
| Circum. inches (mm) | 103.46 (2628.01) | 84.85 (2155.13) | -18.62 (-472.87) -18% |
| Sidewall Height inches (mm) | 8.97 (227.76) | 6 (152.5) | -2.96 (-75.26) -33% |
| Revolutions per mile (km) | 612.38 (380.52) | 746.75 (464.01) | 134.37 (83.49) 21.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.4 mph (26.4 km/h) |
| 25 mph (40.23 km/h) | 20.5 mph (32.99 km/h) |
| 30 mph (48.28 km/h) | 24.6 mph (39.59 km/h) |
| 35 mph (56.33 km/h) | 28.7 mph (46.19 km/h) |
| 40 mph (64.37 km/h) | 32.8 mph (52.79 km/h) |
| 45 mph (72.42 km/h) | 36.9 mph (59.39 km/h) |
| 50 mph (80.47 km/h) | 41 mph (65.99 km/h) |
| 55 mph (88.51 km/h) | 45.1 mph (72.59 km/h) |
| 60 mph (96.56 km/h) | 49.2 mph (79.19 km/h) |
| 65 mph (104.61 km/h) | 53.3 mph (85.78 km/h) |
| 70 mph (112.65 km/h) | 57.4 mph (92.38 km/h) |
| 75 mph (120.7 km/h) | 61.5 mph (98.98 km/h) |
| 80 mph (128.75 km/h) | 65.61 mph (105.58 km/h) |
| 85 mph (136.79 km/h) | 69.71 mph (112.18 km/h) |
| 90 mph (144.84 km/h) | 73.81 mph (118.78 km/h) |
| 95 mph (152.89 km/h) | 77.91 mph (125.38 km/h) |
| 100 mph (160.93 km/h) | 82.01 mph (131.98 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1900 | 2208 | 2377 | 2483 | 2596 | 2677 | 2766 | 2871 | 3016 | 3162 | 3324 | 3453 | 3687 | 3946 | 4148 | 4278 | 4351 | 4617 | 4989 | 5798 |
Better Fuel Economy Factory Ratios Increased Power
