Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 28/9-15 | 33/7.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.98 (710.76) | 33.05 (839.4) | 5.06 (128.64) 18.1% |
| Width inches (mm) | 9.02 (229) | 7.52 (191) | -1.5 (-38) -16.6% |
| Circum. inches (mm) | 87.91 (2232.92) | 103.82 (2637.05) | 15.91 (404.13) 18.1% |
| Sidewall Height inches (mm) | 6.49 (164.88) | 9.02 (229.2) | 2.53 (64.32) 39% |
| Revolutions per mile (km) | 720.74 (447.84) | 610.28 (379.21) | -110.45 (-68.63) -15.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.62 mph (38.01 km/h) |
| 25 mph (40.23 km/h) | 29.52 mph (47.52 km/h) |
| 30 mph (48.28 km/h) | 35.43 mph (57.02 km/h) |
| 35 mph (56.33 km/h) | 41.33 mph (66.52 km/h) |
| 40 mph (64.37 km/h) | 47.24 mph (76.02 km/h) |
| 45 mph (72.42 km/h) | 53.14 mph (85.53 km/h) |
| 50 mph (80.47 km/h) | 59.05 mph (95.03 km/h) |
| 55 mph (88.51 km/h) | 64.95 mph (104.53 km/h) |
| 60 mph (96.56 km/h) | 70.86 mph (114.04 km/h) |
| 65 mph (104.61 km/h) | 76.76 mph (123.54 km/h) |
| 70 mph (112.65 km/h) | 82.67 mph (133.04 km/h) |
| 75 mph (120.7 km/h) | 88.57 mph (142.55 km/h) |
| 80 mph (128.75 km/h) | 94.48 mph (152.05 km/h) |
| 85 mph (136.79 km/h) | 100.38 mph (161.55 km/h) |
| 90 mph (144.84 km/h) | 106.29 mph (171.06 km/h) |
| 95 mph (152.89 km/h) | 112.19 mph (180.56 km/h) |
| 100 mph (160.93 km/h) | 118.1 mph (190.06 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1553 | 1804 | 1943 | 2029 | 2121 | 2187 | 2260 | 2346 | 2465 | 2584 | 2716 | 2822 | 3014 | 3225 | 3390 | 3496 | 3555 | 3774 | 4078 | 4738 |
Better Fuel Economy Factory Ratios Increased Power
