Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 26/10-12 | 30/10-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26 (660.4) | 30 (762) | 4 (101.6) 15.4% |
| Width inches (mm) | 10 (254) | 10 (254) | 0 (0) 0% |
| Circum. inches (mm) | 81.68 (2074.71) | 94.25 (2393.89) | 12.57 (319.19) 15.4% |
| Sidewall Height inches (mm) | 7 (177.8) | 9 (228.6) | 2 (50.8) 28.6% |
| Revolutions per mile (km) | 775.7 (481.99) | 672.27 (417.73) | -103.43 (-64.27) -13.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.08 mph (37.14 km/h) |
| 25 mph (40.23 km/h) | 28.85 mph (46.42 km/h) |
| 30 mph (48.28 km/h) | 34.62 mph (55.71 km/h) |
| 35 mph (56.33 km/h) | 40.38 mph (64.99 km/h) |
| 40 mph (64.37 km/h) | 46.15 mph (74.28 km/h) |
| 45 mph (72.42 km/h) | 51.92 mph (83.56 km/h) |
| 50 mph (80.47 km/h) | 57.69 mph (92.85 km/h) |
| 55 mph (88.51 km/h) | 63.46 mph (102.13 km/h) |
| 60 mph (96.56 km/h) | 69.23 mph (111.42 km/h) |
| 65 mph (104.61 km/h) | 75 mph (120.7 km/h) |
| 70 mph (112.65 km/h) | 80.77 mph (129.99 km/h) |
| 75 mph (120.7 km/h) | 86.54 mph (139.27 km/h) |
| 80 mph (128.75 km/h) | 92.31 mph (148.56 km/h) |
| 85 mph (136.79 km/h) | 98.08 mph (157.84 km/h) |
| 90 mph (144.84 km/h) | 103.85 mph (167.12 km/h) |
| 95 mph (152.89 km/h) | 109.62 mph (176.41 km/h) |
| 100 mph (160.93 km/h) | 115.38 mph (185.69 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1711 | 1987 | 2140 | 2235 | 2337 | 2410 | 2490 | 2584 | 2715 | 2846 | 2992 | 3109 | 3320 | 3553 | 3735 | 3851 | 3917 | 4157 | 4492 | 5220 |
Better Fuel Economy Factory Ratios Increased Power
