Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 90/70-10 | 80/55-10 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 14.96 (380) | 13.46 (342) | -1.5 (-38) -10% |
| Width inches (mm) | 3.54 (90) | 3.15 (80) | -0.39 (-10) -11.1% |
| Circum. inches (mm) | 47 (1193.81) | 42.3 (1074.42) | -4.7 (-119.38) -10% |
| Sidewall Height inches (mm) | 2.48 (63) | 1.73 (44) | -0.75 (-19) -30.2% |
| Revolutions per mile (km) | 1348.08 (837.66) | 1497.87 (930.73) | 149.79 (93.07) 11.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18 mph (28.97 km/h) |
| 25 mph (40.23 km/h) | 22.5 mph (36.21 km/h) |
| 30 mph (48.28 km/h) | 27 mph (43.45 km/h) |
| 35 mph (56.33 km/h) | 31.5 mph (50.69 km/h) |
| 40 mph (64.37 km/h) | 36 mph (57.94 km/h) |
| 45 mph (72.42 km/h) | 40.5 mph (65.18 km/h) |
| 50 mph (80.47 km/h) | 45 mph (72.42 km/h) |
| 55 mph (88.51 km/h) | 49.5 mph (79.66 km/h) |
| 60 mph (96.56 km/h) | 54 mph (86.9 km/h) |
| 65 mph (104.61 km/h) | 58.5 mph (94.15 km/h) |
| 70 mph (112.65 km/h) | 63 mph (101.39 km/h) |
| 75 mph (120.7 km/h) | 67.5 mph (108.63 km/h) |
| 80 mph (128.75 km/h) | 72 mph (115.87 km/h) |
| 85 mph (136.79 km/h) | 76.5 mph (123.12 km/h) |
| 90 mph (144.84 km/h) | 81 mph (130.36 km/h) |
| 95 mph (152.89 km/h) | 85.5 mph (137.6 km/h) |
| 100 mph (160.93 km/h) | 90 mph (144.84 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
