Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/80-16 | 365/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.06 (814.4) | 35.68 (906.3) | 3.62 (91.9) 11.3% |
| Width inches (mm) | 10.04 (255) | 14.37 (365) | 4.33 (110) 43.1% |
| Circum. inches (mm) | 100.73 (2558.51) | 112.1 (2847.23) | 11.37 (288.71) 11.3% |
| Sidewall Height inches (mm) | 8.03 (204) | 9.34 (237.25) | 1.31 (33.25) 16.3% |
| Revolutions per mile (km) | 629.02 (390.85) | 565.23 (351.22) | -63.78 (-39.63) -10.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.26 mph (35.82 km/h) |
| 25 mph (40.23 km/h) | 27.82 mph (44.77 km/h) |
| 30 mph (48.28 km/h) | 33.39 mph (53.73 km/h) |
| 35 mph (56.33 km/h) | 38.95 mph (62.68 km/h) |
| 40 mph (64.37 km/h) | 44.51 mph (71.64 km/h) |
| 45 mph (72.42 km/h) | 50.08 mph (80.59 km/h) |
| 50 mph (80.47 km/h) | 55.64 mph (89.55 km/h) |
| 55 mph (88.51 km/h) | 61.21 mph (98.5 km/h) |
| 60 mph (96.56 km/h) | 66.77 mph (107.46 km/h) |
| 65 mph (104.61 km/h) | 72.33 mph (116.41 km/h) |
| 70 mph (112.65 km/h) | 77.9 mph (125.37 km/h) |
| 75 mph (120.7 km/h) | 83.46 mph (134.32 km/h) |
| 80 mph (128.75 km/h) | 89.03 mph (143.28 km/h) |
| 85 mph (136.79 km/h) | 94.59 mph (152.23 km/h) |
| 90 mph (144.84 km/h) | 100.16 mph (161.19 km/h) |
| 95 mph (152.89 km/h) | 105.72 mph (170.14 km/h) |
| 100 mph (160.93 km/h) | 111.28 mph (179.1 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1438 | 1671 | 1800 | 1879 | 1965 | 2026 | 2093 | 2173 | 2283 | 2393 | 2516 | 2614 | 2791 | 2987 | 3140 | 3238 | 3293 | 3495 | 3777 | 4389 |
Better Fuel Economy Factory Ratios Increased Power
