Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/75-17 | 287/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.74 (679.3) | 32.82 (833.6) | 6.07 (154.3) 22.7% |
| Width inches (mm) | 6.5 (165) | 11.3 (287) | 4.8 (122) 73.9% |
| Circum. inches (mm) | 84.02 (2134.08) | 103.1 (2618.83) | 19.08 (484.75) 22.7% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 7.91 (200.9) | 3.04 (77.15) 62.3% |
| Revolutions per mile (km) | 754.11 (468.58) | 614.53 (381.85) | -139.59 (-86.74) -18.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.54 mph (39.5 km/h) |
| 25 mph (40.23 km/h) | 30.68 mph (49.37 km/h) |
| 30 mph (48.28 km/h) | 36.81 mph (59.25 km/h) |
| 35 mph (56.33 km/h) | 42.95 mph (69.12 km/h) |
| 40 mph (64.37 km/h) | 49.09 mph (79 km/h) |
| 45 mph (72.42 km/h) | 55.22 mph (88.87 km/h) |
| 50 mph (80.47 km/h) | 61.36 mph (98.75 km/h) |
| 55 mph (88.51 km/h) | 67.49 mph (108.62 km/h) |
| 60 mph (96.56 km/h) | 73.63 mph (118.49 km/h) |
| 65 mph (104.61 km/h) | 79.76 mph (128.37 km/h) |
| 70 mph (112.65 km/h) | 85.9 mph (138.24 km/h) |
| 75 mph (120.7 km/h) | 92.04 mph (148.12 km/h) |
| 80 mph (128.75 km/h) | 98.17 mph (157.99 km/h) |
| 85 mph (136.79 km/h) | 104.31 mph (167.87 km/h) |
| 90 mph (144.84 km/h) | 110.44 mph (177.74 km/h) |
| 95 mph (152.89 km/h) | 116.58 mph (187.62 km/h) |
| 100 mph (160.93 km/h) | 122.71 mph (197.49 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1564 | 1817 | 1956 | 2043 | 2136 | 2203 | 2276 | 2362 | 2482 | 2602 | 2735 | 2842 | 3035 | 3247 | 3414 | 3520 | 3580 | 3800 | 4106 | 4771 |
Better Fuel Economy Factory Ratios Increased Power
