Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/70-15 | 280/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.89 (556) | 29.33 (745) | 7.44 (189) 34% |
| Width inches (mm) | 4.92 (125) | 11.02 (280) | 6.1 (155) 124% |
| Circum. inches (mm) | 68.77 (1746.73) | 92.15 (2340.49) | 23.38 (593.76) 34% |
| Sidewall Height inches (mm) | 3.44 (87.5) | 7.17 (182) | 3.72 (94.5) 108% |
| Revolutions per mile (km) | 921.35 (572.5) | 687.61 (427.26) | -233.74 (-145.24) -25.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 26.8 mph (43.13 km/h) |
| 25 mph (40.23 km/h) | 33.5 mph (53.91 km/h) |
| 30 mph (48.28 km/h) | 40.2 mph (64.69 km/h) |
| 35 mph (56.33 km/h) | 46.9 mph (75.47 km/h) |
| 40 mph (64.37 km/h) | 53.6 mph (86.26 km/h) |
| 45 mph (72.42 km/h) | 60.3 mph (97.04 km/h) |
| 50 mph (80.47 km/h) | 67 mph (107.82 km/h) |
| 55 mph (88.51 km/h) | 73.7 mph (118.6 km/h) |
| 60 mph (96.56 km/h) | 80.4 mph (129.38 km/h) |
| 65 mph (104.61 km/h) | 87.1 mph (140.17 km/h) |
| 70 mph (112.65 km/h) | 93.79 mph (150.95 km/h) |
| 75 mph (120.7 km/h) | 100.49 mph (161.73 km/h) |
| 80 mph (128.75 km/h) | 107.19 mph (172.51 km/h) |
| 85 mph (136.79 km/h) | 113.89 mph (183.29 km/h) |
| 90 mph (144.84 km/h) | 120.59 mph (194.08 km/h) |
| 95 mph (152.89 km/h) | 127.29 mph (204.86 km/h) |
| 100 mph (160.93 km/h) | 133.99 mph (215.64 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1750 | 2033 | 2189 | 2286 | 2390 | 2465 | 2547 | 2643 | 2777 | 2911 | 3060 | 3179 | 3395 | 3634 | 3820 | 3939 | 4006 | 4252 | 4594 | 5339 |
Better Fuel Economy Factory Ratios Increased Power
