Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/70-15 | 125/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.89 (556) | 22.87 (581) | 0.98 (25) 4.5% |
| Width inches (mm) | 4.92 (125) | 4.92 (125) | 0 (0) 0% |
| Circum. inches (mm) | 68.77 (1746.73) | 71.86 (1825.27) | 3.09 (78.54) 4.5% |
| Sidewall Height inches (mm) | 3.44 (87.5) | 3.94 (100) | 0.49 (12.5) 14.3% |
| Revolutions per mile (km) | 921.35 (572.5) | 881.7 (547.86) | -39.64 (-24.63) -4.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.9 mph (33.63 km/h) |
| 25 mph (40.23 km/h) | 26.12 mph (42.04 km/h) |
| 30 mph (48.28 km/h) | 31.35 mph (50.45 km/h) |
| 35 mph (56.33 km/h) | 36.57 mph (58.86 km/h) |
| 40 mph (64.37 km/h) | 41.8 mph (67.27 km/h) |
| 45 mph (72.42 km/h) | 47.02 mph (75.68 km/h) |
| 50 mph (80.47 km/h) | 52.25 mph (84.09 km/h) |
| 55 mph (88.51 km/h) | 57.47 mph (92.49 km/h) |
| 60 mph (96.56 km/h) | 62.7 mph (100.9 km/h) |
| 65 mph (104.61 km/h) | 67.92 mph (109.31 km/h) |
| 70 mph (112.65 km/h) | 73.15 mph (117.72 km/h) |
| 75 mph (120.7 km/h) | 78.37 mph (126.13 km/h) |
| 80 mph (128.75 km/h) | 83.6 mph (134.54 km/h) |
| 85 mph (136.79 km/h) | 88.82 mph (142.95 km/h) |
| 90 mph (144.84 km/h) | 94.05 mph (151.35 km/h) |
| 95 mph (152.89 km/h) | 99.27 mph (159.76 km/h) |
| 100 mph (160.93 km/h) | 104.5 mph (168.17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2244 | 2607 | 2807 | 2931 | 3065 | 3160 | 3265 | 3390 | 3561 | 3733 | 3924 | 4077 | 4354 | 4659 | 4898 | 5051 | 5137 | 5452 | 5891 | 6846 |
Better Fuel Economy Factory Ratios Increased Power
