Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 100/80-17 | 115/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.3 (591.8) | 23.79 (604.3) | 0.49 (12.5) 2.1% |
| Width inches (mm) | 3.94 (100) | 4.53 (115) | 0.59 (15) 15% |
| Circum. inches (mm) | 73.2 (1859.19) | 74.74 (1898.46) | 1.55 (39.27) 2.1% |
| Sidewall Height inches (mm) | 3.15 (80) | 3.4 (86.25) | 0.25 (6.25) 7.8% |
| Revolutions per mile (km) | 865.61 (537.87) | 847.71 (526.74) | -17.91 (-11.13) -2.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.42 mph (32.87 km/h) |
| 25 mph (40.23 km/h) | 25.53 mph (41.08 km/h) |
| 30 mph (48.28 km/h) | 30.63 mph (49.3 km/h) |
| 35 mph (56.33 km/h) | 35.74 mph (57.52 km/h) |
| 40 mph (64.37 km/h) | 40.84 mph (65.73 km/h) |
| 45 mph (72.42 km/h) | 45.95 mph (73.95 km/h) |
| 50 mph (80.47 km/h) | 51.06 mph (82.17 km/h) |
| 55 mph (88.51 km/h) | 56.16 mph (90.38 km/h) |
| 60 mph (96.56 km/h) | 61.27 mph (98.6 km/h) |
| 65 mph (104.61 km/h) | 66.37 mph (106.82 km/h) |
| 70 mph (112.65 km/h) | 71.48 mph (115.03 km/h) |
| 75 mph (120.7 km/h) | 76.58 mph (123.25 km/h) |
| 80 mph (128.75 km/h) | 81.69 mph (131.47 km/h) |
| 85 mph (136.79 km/h) | 86.8 mph (139.68 km/h) |
| 90 mph (144.84 km/h) | 91.9 mph (147.9 km/h) |
| 95 mph (152.89 km/h) | 97.01 mph (156.12 km/h) |
| 100 mph (160.93 km/h) | 102.11 mph (164.33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2157 | 2506 | 2699 | 2818 | 2947 | 3039 | 3139 | 3259 | 3424 | 3589 | 3773 | 3920 | 4186 | 4480 | 4709 | 4856 | 4939 | 5242 | 5664 | 6582 |
Better Fuel Economy Factory Ratios Increased Power
