Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/80-12 | 26/9-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.91 (632.8) | 26.06 (662.04) | 1.15 (29.24) 4.6% |
| Width inches (mm) | 8.07 (205) | 9.02 (229) | 0.94 (24) 11.7% |
| Circum. inches (mm) | 78.27 (1988) | 81.88 (2079.86) | 3.62 (91.86) 4.6% |
| Sidewall Height inches (mm) | 6.46 (164) | 7.03 (178.62) | 0.58 (14.62) 8.9% |
| Revolutions per mile (km) | 809.53 (503.02) | 773.78 (480.8) | -35.75 (-22.22) -4.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.92 mph (33.67 km/h) |
| 25 mph (40.23 km/h) | 26.16 mph (42.09 km/h) |
| 30 mph (48.28 km/h) | 31.39 mph (50.51 km/h) |
| 35 mph (56.33 km/h) | 36.62 mph (58.93 km/h) |
| 40 mph (64.37 km/h) | 41.85 mph (67.35 km/h) |
| 45 mph (72.42 km/h) | 47.08 mph (75.77 km/h) |
| 50 mph (80.47 km/h) | 52.31 mph (84.19 km/h) |
| 55 mph (88.51 km/h) | 57.54 mph (92.6 km/h) |
| 60 mph (96.56 km/h) | 62.77 mph (101.02 km/h) |
| 65 mph (104.61 km/h) | 68 mph (109.44 km/h) |
| 70 mph (112.65 km/h) | 73.23 mph (117.86 km/h) |
| 75 mph (120.7 km/h) | 78.47 mph (126.28 km/h) |
| 80 mph (128.75 km/h) | 83.7 mph (134.7 km/h) |
| 85 mph (136.79 km/h) | 88.93 mph (143.12 km/h) |
| 90 mph (144.84 km/h) | 94.16 mph (151.53 km/h) |
| 95 mph (152.89 km/h) | 99.39 mph (159.95 km/h) |
| 100 mph (160.93 km/h) | 104.62 mph (168.37 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1969 | 2288 | 2463 | 2572 | 2690 | 2774 | 2866 | 2975 | 3125 | 3276 | 3444 | 3578 | 3821 | 4089 | 4299 | 4433 | 4508 | 4785 | 5170 | 6008 |
Better Fuel Economy Factory Ratios Increased Power
