Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/90-17 | 255/85-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.69 (728.8) | 34.07 (865.3) | 5.37 (136.5) 18.7% |
| Width inches (mm) | 6.5 (165) | 10.04 (255) | 3.54 (90) 54.5% |
| Circum. inches (mm) | 90.14 (2289.59) | 107.02 (2718.42) | 16.88 (428.83) 18.7% |
| Sidewall Height inches (mm) | 5.85 (148.5) | 8.53 (216.75) | 2.69 (68.25) 46% |
| Revolutions per mile (km) | 702.9 (436.76) | 592.01 (367.86) | -110.88 (-68.9) -15.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.75 mph (38.22 km/h) |
| 25 mph (40.23 km/h) | 29.68 mph (47.77 km/h) |
| 30 mph (48.28 km/h) | 35.62 mph (57.32 km/h) |
| 35 mph (56.33 km/h) | 41.56 mph (66.88 km/h) |
| 40 mph (64.37 km/h) | 47.49 mph (76.43 km/h) |
| 45 mph (72.42 km/h) | 53.43 mph (85.98 km/h) |
| 50 mph (80.47 km/h) | 59.36 mph (95.54 km/h) |
| 55 mph (88.51 km/h) | 65.3 mph (105.09 km/h) |
| 60 mph (96.56 km/h) | 71.24 mph (114.65 km/h) |
| 65 mph (104.61 km/h) | 77.17 mph (124.2 km/h) |
| 70 mph (112.65 km/h) | 83.11 mph (133.75 km/h) |
| 75 mph (120.7 km/h) | 89.05 mph (143.31 km/h) |
| 80 mph (128.75 km/h) | 94.98 mph (152.86 km/h) |
| 85 mph (136.79 km/h) | 100.92 mph (162.42 km/h) |
| 90 mph (144.84 km/h) | 106.86 mph (171.97 km/h) |
| 95 mph (152.89 km/h) | 112.79 mph (181.52 km/h) |
| 100 mph (160.93 km/h) | 118.73 mph (191.08 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1507 | 1750 | 1885 | 1968 | 2058 | 2122 | 2193 | 2276 | 2391 | 2507 | 2635 | 2737 | 2923 | 3129 | 3289 | 3391 | 3449 | 3661 | 3956 | 4597 |
Better Fuel Economy Factory Ratios Increased Power
