Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 33/12-17 | 285/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.09 (840.5) | 33.83 (859.3) | 0.74 (18.8) 2.2% |
| Width inches (mm) | 12.01 (305) | 11.22 (285) | -0.79 (-20) -6.6% |
| Circum. inches (mm) | 103.96 (2640.51) | 106.28 (2699.57) | 2.33 (59.06) 2.2% |
| Sidewall Height inches (mm) | 8.05 (204.35) | 8.42 (213.75) | 0.37 (9.4) 4.6% |
| Revolutions per mile (km) | 609.48 (378.71) | 596.15 (370.43) | -13.33 (-8.29) -2.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.45 mph (32.91 km/h) |
| 25 mph (40.23 km/h) | 25.56 mph (41.13 km/h) |
| 30 mph (48.28 km/h) | 30.67 mph (49.36 km/h) |
| 35 mph (56.33 km/h) | 35.78 mph (57.59 km/h) |
| 40 mph (64.37 km/h) | 40.89 mph (65.81 km/h) |
| 45 mph (72.42 km/h) | 46.01 mph (74.04 km/h) |
| 50 mph (80.47 km/h) | 51.12 mph (82.27 km/h) |
| 55 mph (88.51 km/h) | 56.23 mph (90.49 km/h) |
| 60 mph (96.56 km/h) | 61.34 mph (98.72 km/h) |
| 65 mph (104.61 km/h) | 66.45 mph (106.95 km/h) |
| 70 mph (112.65 km/h) | 71.57 mph (115.17 km/h) |
| 75 mph (120.7 km/h) | 76.68 mph (123.4 km/h) |
| 80 mph (128.75 km/h) | 81.79 mph (131.63 km/h) |
| 85 mph (136.79 km/h) | 86.9 mph (139.85 km/h) |
| 90 mph (144.84 km/h) | 92.01 mph (148.08 km/h) |
| 95 mph (152.89 km/h) | 97.12 mph (156.31 km/h) |
| 100 mph (160.93 km/h) | 102.24 mph (164.53 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1517 | 1762 | 1898 | 1982 | 2072 | 2137 | 2208 | 2292 | 2408 | 2524 | 2653 | 2757 | 2944 | 3150 | 3312 | 3415 | 3473 | 3686 | 3983 | 4629 |
Better Fuel Economy Factory Ratios Increased Power
