Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-15 | 305/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.44 (570) | 27.01 (686) | 4.57 (116) 20.4% |
| Width inches (mm) | 5.31 (135) | 12.01 (305) | 6.69 (170) 125.9% |
| Circum. inches (mm) | 70.5 (1790.71) | 84.85 (2155.13) | 14.35 (364.42) 20.4% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 6 (152.5) | 2.28 (58) 61.4% |
| Revolutions per mile (km) | 898.72 (558.44) | 746.75 (464.01) | -151.97 (-94.43) -16.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.07 mph (38.74 km/h) |
| 25 mph (40.23 km/h) | 30.09 mph (48.42 km/h) |
| 30 mph (48.28 km/h) | 36.11 mph (58.11 km/h) |
| 35 mph (56.33 km/h) | 42.12 mph (67.79 km/h) |
| 40 mph (64.37 km/h) | 48.14 mph (77.47 km/h) |
| 45 mph (72.42 km/h) | 54.16 mph (87.16 km/h) |
| 50 mph (80.47 km/h) | 60.18 mph (96.84 km/h) |
| 55 mph (88.51 km/h) | 66.19 mph (106.53 km/h) |
| 60 mph (96.56 km/h) | 72.21 mph (116.21 km/h) |
| 65 mph (104.61 km/h) | 78.23 mph (125.9 km/h) |
| 70 mph (112.65 km/h) | 84.25 mph (135.58 km/h) |
| 75 mph (120.7 km/h) | 90.26 mph (145.26 km/h) |
| 80 mph (128.75 km/h) | 96.28 mph (154.95 km/h) |
| 85 mph (136.79 km/h) | 102.3 mph (164.63 km/h) |
| 90 mph (144.84 km/h) | 108.32 mph (174.32 km/h) |
| 95 mph (152.89 km/h) | 114.33 mph (184 km/h) |
| 100 mph (160.93 km/h) | 120.35 mph (193.69 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1900 | 2208 | 2377 | 2483 | 2596 | 2677 | 2766 | 2871 | 3016 | 3162 | 3324 | 3453 | 3687 | 3946 | 4148 | 4278 | 4351 | 4617 | 4989 | 5798 |
Better Fuel Economy Factory Ratios Increased Power
