Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/40-16 | 165/50-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.2 (538.4) | 22.5 (571.4) | 1.3 (33) 6.1% |
| Width inches (mm) | 6.5 (165) | 6.5 (165) | 0 (0) 0% |
| Circum. inches (mm) | 66.59 (1691.43) | 70.67 (1795.11) | 4.08 (103.67) 6.1% |
| Sidewall Height inches (mm) | 2.6 (66) | 3.25 (82.5) | 0.65 (16.5) 25% |
| Revolutions per mile (km) | 951.47 (591.21) | 896.52 (557.07) | -54.95 (-34.14) -5.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.23 mph (34.16 km/h) |
| 25 mph (40.23 km/h) | 26.53 mph (42.7 km/h) |
| 30 mph (48.28 km/h) | 31.84 mph (51.24 km/h) |
| 35 mph (56.33 km/h) | 37.15 mph (59.78 km/h) |
| 40 mph (64.37 km/h) | 42.45 mph (68.32 km/h) |
| 45 mph (72.42 km/h) | 47.76 mph (76.86 km/h) |
| 50 mph (80.47 km/h) | 53.06 mph (85.4 km/h) |
| 55 mph (88.51 km/h) | 58.37 mph (93.94 km/h) |
| 60 mph (96.56 km/h) | 63.68 mph (102.48 km/h) |
| 65 mph (104.61 km/h) | 68.98 mph (111.02 km/h) |
| 70 mph (112.65 km/h) | 74.29 mph (119.56 km/h) |
| 75 mph (120.7 km/h) | 79.6 mph (128.1 km/h) |
| 80 mph (128.75 km/h) | 84.9 mph (136.64 km/h) |
| 85 mph (136.79 km/h) | 90.21 mph (145.18 km/h) |
| 90 mph (144.84 km/h) | 95.52 mph (153.72 km/h) |
| 95 mph (152.89 km/h) | 100.82 mph (162.26 km/h) |
| 100 mph (160.93 km/h) | 106.13 mph (170.8 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2281 | 2650 | 2854 | 2980 | 3116 | 3213 | 3320 | 3446 | 3621 | 3796 | 3990 | 4145 | 4427 | 4738 | 4980 | 5136 | 5223 | 5543 | 5990 | 6961 |
Better Fuel Economy Factory Ratios Increased Power
