Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/80-15 | 135/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.87 (581) | 22.44 (570) | -0.43 (-11) -1.9% |
| Width inches (mm) | 4.92 (125) | 5.31 (135) | 0.39 (10) 8% |
| Circum. inches (mm) | 71.86 (1825.27) | 70.5 (1790.71) | -1.36 (-34.56) -1.9% |
| Sidewall Height inches (mm) | 3.94 (100) | 3.72 (94.5) | -0.22 (-5.5) -5.5% |
| Revolutions per mile (km) | 881.7 (547.86) | 898.72 (558.44) | 17.02 (10.57) 1.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.62 mph (31.58 km/h) |
| 25 mph (40.23 km/h) | 24.53 mph (39.47 km/h) |
| 30 mph (48.28 km/h) | 29.43 mph (47.37 km/h) |
| 35 mph (56.33 km/h) | 34.34 mph (55.26 km/h) |
| 40 mph (64.37 km/h) | 39.24 mph (63.16 km/h) |
| 45 mph (72.42 km/h) | 44.15 mph (71.05 km/h) |
| 50 mph (80.47 km/h) | 49.05 mph (78.94 km/h) |
| 55 mph (88.51 km/h) | 53.96 mph (86.84 km/h) |
| 60 mph (96.56 km/h) | 58.86 mph (94.73 km/h) |
| 65 mph (104.61 km/h) | 63.77 mph (102.63 km/h) |
| 70 mph (112.65 km/h) | 68.67 mph (110.52 km/h) |
| 75 mph (120.7 km/h) | 73.58 mph (118.42 km/h) |
| 80 mph (128.75 km/h) | 78.49 mph (126.31 km/h) |
| 85 mph (136.79 km/h) | 83.39 mph (134.2 km/h) |
| 90 mph (144.84 km/h) | 88.3 mph (142.1 km/h) |
| 95 mph (152.89 km/h) | 93.2 mph (149.99 km/h) |
| 100 mph (160.93 km/h) | 98.11 mph (157.89 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2287 | 2657 | 2861 | 2988 | 3124 | 3221 | 3328 | 3455 | 3630 | 3805 | 4000 | 4156 | 4438 | 4749 | 4993 | 5148 | 5236 | 5557 | 6005 | 6978 |
Better Fuel Economy Factory Ratios Increased Power
