Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/45-22 | 305/40-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.1 (815.3) | 31.61 (802.8) | -0.49 (-12.5) -1.5% |
| Width inches (mm) | 11.22 (285) | 12.01 (305) | 0.79 (20) 7% |
| Circum. inches (mm) | 100.84 (2561.34) | 99.29 (2522.07) | -1.55 (-39.27) -1.5% |
| Sidewall Height inches (mm) | 5.05 (128.25) | 4.8 (122) | -0.25 (-6.25) -4.9% |
| Revolutions per mile (km) | 628.32 (390.42) | 638.1 (396.5) | 9.78 (6.08) 1.6% |
305/40-22 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.69 mph (31.69 km/h) |
| 25 mph (40.23 km/h) | 24.62 mph (39.62 km/h) |
| 30 mph (48.28 km/h) | 29.54 mph (47.54 km/h) |
| 35 mph (56.33 km/h) | 34.46 mph (55.46 km/h) |
| 40 mph (64.37 km/h) | 39.39 mph (63.39 km/h) |
| 45 mph (72.42 km/h) | 44.31 mph (71.31 km/h) |
| 50 mph (80.47 km/h) | 49.23 mph (79.23 km/h) |
| 55 mph (88.51 km/h) | 54.16 mph (87.16 km/h) |
| 60 mph (96.56 km/h) | 59.08 mph (95.08 km/h) |
| 65 mph (104.61 km/h) | 64 mph (103 km/h) |
| 70 mph (112.65 km/h) | 68.93 mph (110.93 km/h) |
| 75 mph (120.7 km/h) | 73.85 mph (118.85 km/h) |
| 80 mph (128.75 km/h) | 78.77 mph (126.77 km/h) |
| 85 mph (136.79 km/h) | 83.7 mph (134.7 km/h) |
| 90 mph (144.84 km/h) | 88.62 mph (142.62 km/h) |
| 95 mph (152.89 km/h) | 93.54 mph (150.54 km/h) |
| 100 mph (160.93 km/h) | 98.47 mph (158.47 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1624 | 1886 | 2032 | 2121 | 2218 | 2287 | 2363 | 2453 | 2577 | 2702 | 2840 | 2951 | 3151 | 3372 | 3545 | 3655 | 3718 | 3946 | 4263 | 4954 |
Better Fuel Economy Factory Ratios Increased Power
