Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/30-22 | 305/30-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.44 (747.8) | 29.2 (741.8) | -0.24 (-6) -0.8% |
| Width inches (mm) | 12.4 (315) | 12.01 (305) | -0.39 (-10) -3.2% |
| Circum. inches (mm) | 92.49 (2349.28) | 91.75 (2330.43) | -0.74 (-18.85) -0.8% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 3.6 (91.5) | -0.12 (-3) -3.2% |
| Revolutions per mile (km) | 685.04 (425.66) | 690.58 (429.1) | 5.54 (3.44) 0.8% |
305/30-22 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.84 mph (31.93 km/h) |
| 25 mph (40.23 km/h) | 24.8 mph (39.91 km/h) |
| 30 mph (48.28 km/h) | 29.76 mph (47.89 km/h) |
| 35 mph (56.33 km/h) | 34.72 mph (55.88 km/h) |
| 40 mph (64.37 km/h) | 39.68 mph (63.86 km/h) |
| 45 mph (72.42 km/h) | 44.64 mph (71.84 km/h) |
| 50 mph (80.47 km/h) | 49.6 mph (79.82 km/h) |
| 55 mph (88.51 km/h) | 54.56 mph (87.8 km/h) |
| 60 mph (96.56 km/h) | 59.52 mph (95.79 km/h) |
| 65 mph (104.61 km/h) | 64.48 mph (103.77 km/h) |
| 70 mph (112.65 km/h) | 69.44 mph (111.75 km/h) |
| 75 mph (120.7 km/h) | 74.4 mph (119.73 km/h) |
| 80 mph (128.75 km/h) | 79.36 mph (127.71 km/h) |
| 85 mph (136.79 km/h) | 84.32 mph (135.7 km/h) |
| 90 mph (144.84 km/h) | 89.28 mph (143.68 km/h) |
| 95 mph (152.89 km/h) | 94.24 mph (151.66 km/h) |
| 100 mph (160.93 km/h) | 99.2 mph (159.64 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1757 | 2042 | 2199 | 2296 | 2401 | 2475 | 2558 | 2655 | 2789 | 2924 | 3074 | 3193 | 3410 | 3649 | 3836 | 3956 | 4023 | 4270 | 4614 | 5362 |
Better Fuel Economy Factory Ratios Increased Power
