Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/40-16 | 165/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.2 (538.4) | 20.85 (529.5) | -0.35 (-8.9) -1.7% |
| Width inches (mm) | 6.5 (165) | 6.5 (165) | 0 (0) 0% |
| Circum. inches (mm) | 66.59 (1691.43) | 65.49 (1663.47) | -1.1 (-27.96) -1.7% |
| Sidewall Height inches (mm) | 2.6 (66) | 2.92 (74.25) | 0.32 (8.25) 12.5% |
| Revolutions per mile (km) | 951.47 (591.21) | 967.46 (601.15) | 15.99 (9.94) 1.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.67 mph (31.65 km/h) |
| 25 mph (40.23 km/h) | 24.59 mph (39.57 km/h) |
| 30 mph (48.28 km/h) | 29.5 mph (47.48 km/h) |
| 35 mph (56.33 km/h) | 34.42 mph (55.4 km/h) |
| 40 mph (64.37 km/h) | 39.34 mph (63.31 km/h) |
| 45 mph (72.42 km/h) | 44.26 mph (71.22 km/h) |
| 50 mph (80.47 km/h) | 49.17 mph (79.14 km/h) |
| 55 mph (88.51 km/h) | 54.09 mph (87.05 km/h) |
| 60 mph (96.56 km/h) | 59.01 mph (94.96 km/h) |
| 65 mph (104.61 km/h) | 63.93 mph (102.88 km/h) |
| 70 mph (112.65 km/h) | 68.84 mph (110.79 km/h) |
| 75 mph (120.7 km/h) | 73.76 mph (118.71 km/h) |
| 80 mph (128.75 km/h) | 78.68 mph (126.62 km/h) |
| 85 mph (136.79 km/h) | 83.59 mph (134.53 km/h) |
| 90 mph (144.84 km/h) | 88.51 mph (142.45 km/h) |
| 95 mph (152.89 km/h) | 93.43 mph (150.36 km/h) |
| 100 mph (160.93 km/h) | 98.35 mph (158.27 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
