Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/40-17 | 265/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.35 (643.8) | 26.39 (670.3) | 1.04 (26.5) 4.1% |
| Width inches (mm) | 10.43 (265) | 10.43 (265) | 0 (0) 0% |
| Circum. inches (mm) | 79.63 (2022.56) | 82.91 (2105.81) | 3.28 (83.25) 4.1% |
| Sidewall Height inches (mm) | 4.17 (106) | 4.69 (119.25) | 0.52 (13.25) 12.5% |
| Revolutions per mile (km) | 795.7 (494.42) | 764.24 (474.88) | -31.46 (-19.55) -4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.82 mph (33.51 km/h) |
| 25 mph (40.23 km/h) | 26.03 mph (41.89 km/h) |
| 30 mph (48.28 km/h) | 31.23 mph (50.27 km/h) |
| 35 mph (56.33 km/h) | 36.44 mph (58.65 km/h) |
| 40 mph (64.37 km/h) | 41.65 mph (67.02 km/h) |
| 45 mph (72.42 km/h) | 46.85 mph (75.4 km/h) |
| 50 mph (80.47 km/h) | 52.06 mph (83.78 km/h) |
| 55 mph (88.51 km/h) | 57.26 mph (92.16 km/h) |
| 60 mph (96.56 km/h) | 62.47 mph (100.54 km/h) |
| 65 mph (104.61 km/h) | 67.68 mph (108.91 km/h) |
| 70 mph (112.65 km/h) | 72.88 mph (117.29 km/h) |
| 75 mph (120.7 km/h) | 78.09 mph (125.67 km/h) |
| 80 mph (128.75 km/h) | 83.29 mph (134.05 km/h) |
| 85 mph (136.79 km/h) | 88.5 mph (142.43 km/h) |
| 90 mph (144.84 km/h) | 93.7 mph (150.8 km/h) |
| 95 mph (152.89 km/h) | 98.91 mph (159.18 km/h) |
| 100 mph (160.93 km/h) | 104.12 mph (167.56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1945 | 2259 | 2433 | 2541 | 2657 | 2739 | 2830 | 2938 | 3087 | 3236 | 3401 | 3534 | 3774 | 4039 | 4246 | 4378 | 4452 | 4726 | 5106 | 5934 |
Better Fuel Economy Factory Ratios Increased Power
