Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 26/10-12 | 30/12-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26 (660.4) | 30.01 (762.3) | 4.01 (101.9) 15.4% |
| Width inches (mm) | 10 (254) | 12.01 (305) | 2.01 (51) 20.1% |
| Circum. inches (mm) | 81.68 (2074.71) | 94.28 (2394.84) | 12.6 (320.13) 15.4% |
| Sidewall Height inches (mm) | 7 (177.8) | 9.01 (228.75) | 2.01 (50.95) 28.7% |
| Revolutions per mile (km) | 775.7 (481.99) | 672.01 (417.56) | -103.69 (-64.43) -13.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.09 mph (37.15 km/h) |
| 25 mph (40.23 km/h) | 28.86 mph (46.44 km/h) |
| 30 mph (48.28 km/h) | 34.63 mph (55.73 km/h) |
| 35 mph (56.33 km/h) | 40.4 mph (65.02 km/h) |
| 40 mph (64.37 km/h) | 46.17 mph (74.31 km/h) |
| 45 mph (72.42 km/h) | 51.94 mph (83.6 km/h) |
| 50 mph (80.47 km/h) | 57.72 mph (92.88 km/h) |
| 55 mph (88.51 km/h) | 63.49 mph (102.17 km/h) |
| 60 mph (96.56 km/h) | 69.26 mph (111.46 km/h) |
| 65 mph (104.61 km/h) | 75.03 mph (120.75 km/h) |
| 70 mph (112.65 km/h) | 80.8 mph (130.04 km/h) |
| 75 mph (120.7 km/h) | 86.57 mph (139.33 km/h) |
| 80 mph (128.75 km/h) | 92.34 mph (148.61 km/h) |
| 85 mph (136.79 km/h) | 98.12 mph (157.9 km/h) |
| 90 mph (144.84 km/h) | 103.89 mph (167.19 km/h) |
| 95 mph (152.89 km/h) | 109.66 mph (176.48 km/h) |
| 100 mph (160.93 km/h) | 115.43 mph (185.77 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1710 | 1987 | 2139 | 2234 | 2336 | 2409 | 2489 | 2583 | 2714 | 2845 | 2991 | 3107 | 3318 | 3551 | 3733 | 3850 | 3915 | 4155 | 4490 | 5218 |
Better Fuel Economy Factory Ratios Increased Power
