Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/80-15 | 125/90-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.87 (581) | 23.86 (606) | 0.98 (25) 4.3% |
| Width inches (mm) | 4.92 (125) | 4.92 (125) | 0 (0) 0% |
| Circum. inches (mm) | 71.86 (1825.27) | 74.95 (1903.81) | 3.09 (78.54) 4.3% |
| Sidewall Height inches (mm) | 3.94 (100) | 4.43 (112.5) | 0.49 (12.5) 12.5% |
| Revolutions per mile (km) | 881.7 (547.86) | 845.33 (525.26) | -36.37 (-22.6) -4.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.86 mph (33.57 km/h) |
| 25 mph (40.23 km/h) | 26.08 mph (41.96 km/h) |
| 30 mph (48.28 km/h) | 31.29 mph (50.36 km/h) |
| 35 mph (56.33 km/h) | 36.51 mph (58.75 km/h) |
| 40 mph (64.37 km/h) | 41.72 mph (67.14 km/h) |
| 45 mph (72.42 km/h) | 46.94 mph (75.54 km/h) |
| 50 mph (80.47 km/h) | 52.15 mph (83.93 km/h) |
| 55 mph (88.51 km/h) | 57.37 mph (92.32 km/h) |
| 60 mph (96.56 km/h) | 62.58 mph (100.72 km/h) |
| 65 mph (104.61 km/h) | 67.8 mph (109.11 km/h) |
| 70 mph (112.65 km/h) | 73.01 mph (117.5 km/h) |
| 75 mph (120.7 km/h) | 78.23 mph (125.89 km/h) |
| 80 mph (128.75 km/h) | 83.44 mph (134.29 km/h) |
| 85 mph (136.79 km/h) | 88.66 mph (142.68 km/h) |
| 90 mph (144.84 km/h) | 93.87 mph (151.07 km/h) |
| 95 mph (152.89 km/h) | 99.09 mph (159.47 km/h) |
| 100 mph (160.93 km/h) | 104.3 mph (167.86 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2151 | 2499 | 2691 | 2810 | 2938 | 3030 | 3131 | 3250 | 3414 | 3579 | 3762 | 3909 | 4174 | 4467 | 4696 | 4842 | 4925 | 5227 | 5648 | 6563 |
Better Fuel Economy Factory Ratios Increased Power
