Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/80-15 | 175/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.39 (645) | 24.65 (626) | -0.75 (-19) -2.9% |
| Width inches (mm) | 6.5 (165) | 6.89 (175) | 0.39 (10) 6.1% |
| Circum. inches (mm) | 79.78 (2026.33) | 77.43 (1966.64) | -2.35 (-59.69) -2.9% |
| Sidewall Height inches (mm) | 5.2 (132) | 4.82 (122.5) | -0.37 (-9.5) -7.2% |
| Revolutions per mile (km) | 794.22 (493.5) | 818.32 (508.48) | 24.11 (14.98) 3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.41 mph (31.24 km/h) |
| 25 mph (40.23 km/h) | 24.26 mph (39.05 km/h) |
| 30 mph (48.28 km/h) | 29.12 mph (46.86 km/h) |
| 35 mph (56.33 km/h) | 33.97 mph (54.67 km/h) |
| 40 mph (64.37 km/h) | 38.82 mph (62.48 km/h) |
| 45 mph (72.42 km/h) | 43.67 mph (70.29 km/h) |
| 50 mph (80.47 km/h) | 48.53 mph (78.1 km/h) |
| 55 mph (88.51 km/h) | 53.38 mph (85.91 km/h) |
| 60 mph (96.56 km/h) | 58.23 mph (93.72 km/h) |
| 65 mph (104.61 km/h) | 63.09 mph (101.53 km/h) |
| 70 mph (112.65 km/h) | 67.94 mph (109.34 km/h) |
| 75 mph (120.7 km/h) | 72.79 mph (117.15 km/h) |
| 80 mph (128.75 km/h) | 77.64 mph (124.96 km/h) |
| 85 mph (136.79 km/h) | 82.5 mph (132.76 km/h) |
| 90 mph (144.84 km/h) | 87.35 mph (140.57 km/h) |
| 95 mph (152.89 km/h) | 92.2 mph (148.38 km/h) |
| 100 mph (160.93 km/h) | 97.05 mph (156.19 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2082 | 2419 | 2605 | 2721 | 2845 | 2933 | 3031 | 3146 | 3305 | 3465 | 3642 | 3784 | 4041 | 4324 | 4546 | 4688 | 4768 | 5060 | 5468 | 6354 |
Better Fuel Economy Factory Ratios Increased Power
