Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/80-17 | 245/87-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.91 (759.8) | 33.78 (858.1) | 3.87 (98.3) 12.9% |
| Width inches (mm) | 8.07 (205) | 9.65 (245) | 1.57 (40) 19.5% |
| Circum. inches (mm) | 93.98 (2386.98) | 106.13 (2695.8) | 12.16 (308.82) 12.9% |
| Sidewall Height inches (mm) | 6.46 (164) | 8.39 (213.15) | 1.94 (49.15) 30% |
| Revolutions per mile (km) | 674.22 (418.94) | 596.98 (370.95) | -77.24 (-47.99) -11.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.59 mph (36.35 km/h) |
| 25 mph (40.23 km/h) | 28.23 mph (45.44 km/h) |
| 30 mph (48.28 km/h) | 33.88 mph (54.53 km/h) |
| 35 mph (56.33 km/h) | 39.53 mph (63.61 km/h) |
| 40 mph (64.37 km/h) | 45.18 mph (72.7 km/h) |
| 45 mph (72.42 km/h) | 50.82 mph (81.79 km/h) |
| 50 mph (80.47 km/h) | 56.47 mph (90.88 km/h) |
| 55 mph (88.51 km/h) | 62.12 mph (99.97 km/h) |
| 60 mph (96.56 km/h) | 67.76 mph (109.05 km/h) |
| 65 mph (104.61 km/h) | 73.41 mph (118.14 km/h) |
| 70 mph (112.65 km/h) | 79.06 mph (127.23 km/h) |
| 75 mph (120.7 km/h) | 84.7 mph (136.32 km/h) |
| 80 mph (128.75 km/h) | 90.35 mph (145.4 km/h) |
| 85 mph (136.79 km/h) | 96 mph (154.49 km/h) |
| 90 mph (144.84 km/h) | 101.64 mph (163.58 km/h) |
| 95 mph (152.89 km/h) | 107.29 mph (172.67 km/h) |
| 100 mph (160.93 km/h) | 112.94 mph (181.76 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1519 | 1765 | 1901 | 1985 | 2075 | 2140 | 2211 | 2295 | 2411 | 2528 | 2657 | 2760 | 2948 | 3155 | 3316 | 3420 | 3478 | 3691 | 3989 | 4635 |
Better Fuel Economy Factory Ratios Increased Power
