Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 100/70-17 | 80/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.51 (571.8) | 22.04 (559.8) | -0.47 (-12) -2.1% |
| Width inches (mm) | 3.94 (100) | 3.15 (80) | -0.79 (-20) -20% |
| Circum. inches (mm) | 70.72 (1796.36) | 69.24 (1758.66) | -1.48 (-37.7) -2.1% |
| Sidewall Height inches (mm) | 2.76 (70) | 2.52 (64) | -0.24 (-6) -8.6% |
| Revolutions per mile (km) | 895.89 (556.68) | 915.09 (568.61) | 19.2 (11.93) 2.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.58 mph (31.51 km/h) |
| 25 mph (40.23 km/h) | 24.48 mph (39.39 km/h) |
| 30 mph (48.28 km/h) | 29.37 mph (47.27 km/h) |
| 35 mph (56.33 km/h) | 34.27 mph (55.15 km/h) |
| 40 mph (64.37 km/h) | 39.16 mph (63.02 km/h) |
| 45 mph (72.42 km/h) | 44.06 mph (70.9 km/h) |
| 50 mph (80.47 km/h) | 48.95 mph (78.78 km/h) |
| 55 mph (88.51 km/h) | 53.85 mph (86.66 km/h) |
| 60 mph (96.56 km/h) | 58.74 mph (94.53 km/h) |
| 65 mph (104.61 km/h) | 63.64 mph (102.41 km/h) |
| 70 mph (112.65 km/h) | 68.53 mph (110.29 km/h) |
| 75 mph (120.7 km/h) | 73.43 mph (118.17 km/h) |
| 80 mph (128.75 km/h) | 78.32 mph (126.05 km/h) |
| 85 mph (136.79 km/h) | 83.22 mph (133.92 km/h) |
| 90 mph (144.84 km/h) | 88.11 mph (141.8 km/h) |
| 95 mph (152.89 km/h) | 93.01 mph (149.68 km/h) |
| 100 mph (160.93 km/h) | 97.9 mph (157.56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2329 | 2705 | 2913 | 3042 | 3181 | 3280 | 3389 | 3518 | 3696 | 3875 | 4073 | 4231 | 4519 | 4836 | 5084 | 5242 | 5331 | 5658 | 6114 | 7105 |
Better Fuel Economy Factory Ratios Increased Power
