Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 80/80-17 | 90/90-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.04 (559.8) | 23.38 (593.8) | 1.34 (34) 6.1% |
| Width inches (mm) | 3.15 (80) | 3.54 (90) | 0.39 (10) 12.5% |
| Circum. inches (mm) | 69.24 (1758.66) | 73.44 (1865.48) | 4.21 (106.81) 6.1% |
| Sidewall Height inches (mm) | 2.52 (64) | 3.19 (81) | 0.67 (17) 26.6% |
| Revolutions per mile (km) | 915.09 (568.61) | 862.7 (536.05) | -52.4 (-32.56) -5.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.21 mph (34.14 km/h) |
| 25 mph (40.23 km/h) | 26.52 mph (42.68 km/h) |
| 30 mph (48.28 km/h) | 31.82 mph (51.21 km/h) |
| 35 mph (56.33 km/h) | 37.13 mph (59.75 km/h) |
| 40 mph (64.37 km/h) | 42.43 mph (68.28 km/h) |
| 45 mph (72.42 km/h) | 47.73 mph (76.82 km/h) |
| 50 mph (80.47 km/h) | 53.04 mph (85.35 km/h) |
| 55 mph (88.51 km/h) | 58.34 mph (93.89 km/h) |
| 60 mph (96.56 km/h) | 63.64 mph (102.43 km/h) |
| 65 mph (104.61 km/h) | 68.95 mph (110.96 km/h) |
| 70 mph (112.65 km/h) | 74.25 mph (119.5 km/h) |
| 75 mph (120.7 km/h) | 79.56 mph (128.03 km/h) |
| 80 mph (128.75 km/h) | 84.86 mph (136.57 km/h) |
| 85 mph (136.79 km/h) | 90.16 mph (145.1 km/h) |
| 90 mph (144.84 km/h) | 95.47 mph (153.64 km/h) |
| 95 mph (152.89 km/h) | 100.77 mph (162.17 km/h) |
| 100 mph (160.93 km/h) | 106.07 mph (170.71 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2195 | 2550 | 2747 | 2868 | 2999 | 3092 | 3195 | 3316 | 3485 | 3653 | 3840 | 3989 | 4260 | 4559 | 4793 | 4942 | 5026 | 5334 | 5764 | 6698 |
Better Fuel Economy Factory Ratios Increased Power
