Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-14 | 26/8-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.34 (643.6) | 26.07 (662.08) | 0.73 (18.48) 2.9% |
| Width inches (mm) | 7.09 (180) | 7.99 (203) | 0.91 (23) 12.8% |
| Circum. inches (mm) | 79.6 (2021.93) | 81.89 (2079.99) | 2.29 (58.06) 2.9% |
| Sidewall Height inches (mm) | 5.67 (144) | 7.03 (178.64) | 1.36 (34.64) 24.1% |
| Revolutions per mile (km) | 795.94 (494.58) | 773.73 (480.77) | -22.22 (-13.8) -2.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.57 mph (33.11 km/h) |
| 25 mph (40.23 km/h) | 25.72 mph (41.39 km/h) |
| 30 mph (48.28 km/h) | 30.86 mph (49.67 km/h) |
| 35 mph (56.33 km/h) | 36 mph (57.94 km/h) |
| 40 mph (64.37 km/h) | 41.15 mph (66.22 km/h) |
| 45 mph (72.42 km/h) | 46.29 mph (74.5 km/h) |
| 50 mph (80.47 km/h) | 51.44 mph (82.78 km/h) |
| 55 mph (88.51 km/h) | 56.58 mph (91.06 km/h) |
| 60 mph (96.56 km/h) | 61.72 mph (99.33 km/h) |
| 65 mph (104.61 km/h) | 66.87 mph (107.61 km/h) |
| 70 mph (112.65 km/h) | 72.01 mph (115.89 km/h) |
| 75 mph (120.7 km/h) | 77.15 mph (124.17 km/h) |
| 80 mph (128.75 km/h) | 82.3 mph (132.44 km/h) |
| 85 mph (136.79 km/h) | 87.44 mph (140.72 km/h) |
| 90 mph (144.84 km/h) | 92.58 mph (149 km/h) |
| 95 mph (152.89 km/h) | 97.73 mph (157.28 km/h) |
| 100 mph (160.93 km/h) | 102.87 mph (165.56 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 | 2287 | 2463 | 2572 | 2690 | 2773 | 2866 | 2974 | 3125 | 3276 | 3444 | 3578 | 3821 | 4089 | 4298 | 4432 | 4508 | 4784 | 5170 | 6008 |
Better Fuel Economy Factory Ratios Increased Power
