Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 170/80-16 | 216/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.71 (678.4) | 30.46 (773.6) | 3.75 (95.2) 14% |
| Width inches (mm) | 6.69 (170) | 8.5 (216) | 1.81 (46) 27.1% |
| Circum. inches (mm) | 83.91 (2131.26) | 95.68 (2430.34) | 11.77 (299.08) 14% |
| Sidewall Height inches (mm) | 5.35 (136) | 7.23 (183.6) | 1.87 (47.6) 35% |
| Revolutions per mile (km) | 755.12 (469.21) | 662.19 (411.46) | -92.93 (-57.74) -12.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.81 mph (36.7 km/h) |
| 25 mph (40.23 km/h) | 28.51 mph (45.88 km/h) |
| 30 mph (48.28 km/h) | 34.21 mph (55.06 km/h) |
| 35 mph (56.33 km/h) | 39.91 mph (64.23 km/h) |
| 40 mph (64.37 km/h) | 45.61 mph (73.41 km/h) |
| 45 mph (72.42 km/h) | 51.31 mph (82.58 km/h) |
| 50 mph (80.47 km/h) | 57.02 mph (91.76 km/h) |
| 55 mph (88.51 km/h) | 62.72 mph (100.94 km/h) |
| 60 mph (96.56 km/h) | 68.42 mph (110.11 km/h) |
| 65 mph (104.61 km/h) | 74.12 mph (119.29 km/h) |
| 70 mph (112.65 km/h) | 79.82 mph (128.46 km/h) |
| 75 mph (120.7 km/h) | 85.52 mph (137.64 km/h) |
| 80 mph (128.75 km/h) | 91.23 mph (146.81 km/h) |
| 85 mph (136.79 km/h) | 96.93 mph (155.99 km/h) |
| 90 mph (144.84 km/h) | 102.63 mph (165.17 km/h) |
| 95 mph (152.89 km/h) | 108.33 mph (174.34 km/h) |
| 100 mph (160.93 km/h) | 114.03 mph (183.52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1685 | 1958 | 2108 | 2201 | 2302 | 2374 | 2452 | 2546 | 2675 | 2804 | 2947 | 3062 | 3270 | 3499 | 3679 | 3793 | 3858 | 4095 | 4424 | 5141 |
Better Fuel Economy Factory Ratios Increased Power
