Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/80-17 | 165/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.39 (695.8) | 26.09 (662.8) | -1.3 (-33) -4.7% |
| Width inches (mm) | 6.5 (165) | 6.5 (165) | 0 (0) 0% |
| Circum. inches (mm) | 86.06 (2185.92) | 81.98 (2082.25) | -4.08 (-103.67) -4.7% |
| Sidewall Height inches (mm) | 5.2 (132) | 4.55 (115.5) | -0.65 (-16.5) -12.5% |
| Revolutions per mile (km) | 736.23 (457.47) | 772.89 (480.25) | 36.66 (22.78) 5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.05 mph (30.66 km/h) |
| 25 mph (40.23 km/h) | 23.81 mph (38.33 km/h) |
| 30 mph (48.28 km/h) | 28.58 mph (45.99 km/h) |
| 35 mph (56.33 km/h) | 33.34 mph (53.66 km/h) |
| 40 mph (64.37 km/h) | 38.1 mph (61.32 km/h) |
| 45 mph (72.42 km/h) | 42.87 mph (68.99 km/h) |
| 50 mph (80.47 km/h) | 47.63 mph (76.65 km/h) |
| 55 mph (88.51 km/h) | 52.39 mph (84.32 km/h) |
| 60 mph (96.56 km/h) | 57.15 mph (91.98 km/h) |
| 65 mph (104.61 km/h) | 61.92 mph (99.65 km/h) |
| 70 mph (112.65 km/h) | 66.68 mph (107.31 km/h) |
| 75 mph (120.7 km/h) | 71.44 mph (114.98 km/h) |
| 80 mph (128.75 km/h) | 76.21 mph (122.64 km/h) |
| 85 mph (136.79 km/h) | 80.97 mph (130.31 km/h) |
| 90 mph (144.84 km/h) | 85.73 mph (137.97 km/h) |
| 95 mph (152.89 km/h) | 90.49 mph (145.64 km/h) |
| 100 mph (160.93 km/h) | 95.26 mph (153.3 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1967 | 2285 | 2461 | 2569 | 2687 | 2770 | 2862 | 2971 | 3122 | 3273 | 3440 | 3574 | 3817 | 4084 | 4294 | 4428 | 4503 | 4779 | 5164 | 6001 |
Better Fuel Economy Factory Ratios Increased Power
