Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 266/76-15 | 300/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.92 (785.32) | 26.81 (681) | -4.11 (-104.32) -13.3% |
| Width inches (mm) | 10.47 (266) | 11.81 (300) | 1.34 (34) 12.8% |
| Circum. inches (mm) | 97.13 (2467.16) | 84.23 (2139.42) | -12.9 (-327.73) -13.3% |
| Sidewall Height inches (mm) | 7.96 (202.16) | 5.91 (150) | -2.05 (-52.16) -25.8% |
| Revolutions per mile (km) | 652.31 (405.32) | 752.23 (467.41) | 99.92 (62.09) 15.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.34 mph (27.91 km/h) |
| 25 mph (40.23 km/h) | 21.68 mph (34.89 km/h) |
| 30 mph (48.28 km/h) | 26.01 mph (41.87 km/h) |
| 35 mph (56.33 km/h) | 30.35 mph (48.84 km/h) |
| 40 mph (64.37 km/h) | 34.69 mph (55.82 km/h) |
| 45 mph (72.42 km/h) | 39.02 mph (62.8 km/h) |
| 50 mph (80.47 km/h) | 43.36 mph (69.78 km/h) |
| 55 mph (88.51 km/h) | 47.69 mph (76.76 km/h) |
| 60 mph (96.56 km/h) | 52.03 mph (83.73 km/h) |
| 65 mph (104.61 km/h) | 56.37 mph (90.71 km/h) |
| 70 mph (112.65 km/h) | 60.7 mph (97.69 km/h) |
| 75 mph (120.7 km/h) | 65.04 mph (104.67 km/h) |
| 80 mph (128.75 km/h) | 69.37 mph (111.65 km/h) |
| 85 mph (136.79 km/h) | 73.71 mph (118.62 km/h) |
| 90 mph (144.84 km/h) | 78.04 mph (125.6 km/h) |
| 95 mph (152.89 km/h) | 82.38 mph (132.58 km/h) |
| 100 mph (160.93 km/h) | 86.72 mph (139.56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1914 | 2224 | 2395 | 2501 | 2615 | 2696 | 2786 | 2892 | 3038 | 3185 | 3348 | 3478 | 3715 | 3975 | 4179 | 4309 | 4382 | 4651 | 5026 | 5841 |
Better Fuel Economy Factory Ratios Increased Power
