Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/45-18 | 26/10.5-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.74 (704.7) | 25.99 (660.12) | -1.76 (-44.58) -6.3% |
| Width inches (mm) | 10.83 (275) | 10.51 (267) | -0.31 (-8) -2.9% |
| Circum. inches (mm) | 87.16 (2213.88) | 81.65 (2073.83) | -5.51 (-140.05) -6.3% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 3.99 (101.46) | -0.88 (-22.29) -18% |
| Revolutions per mile (km) | 726.93 (451.69) | 776.03 (482.2) | 49.09 (30.5) 6.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.73 mph (30.15 km/h) |
| 25 mph (40.23 km/h) | 23.42 mph (37.69 km/h) |
| 30 mph (48.28 km/h) | 28.1 mph (45.23 km/h) |
| 35 mph (56.33 km/h) | 32.79 mph (52.76 km/h) |
| 40 mph (64.37 km/h) | 37.47 mph (60.3 km/h) |
| 45 mph (72.42 km/h) | 42.15 mph (67.84 km/h) |
| 50 mph (80.47 km/h) | 46.84 mph (75.38 km/h) |
| 55 mph (88.51 km/h) | 51.52 mph (82.91 km/h) |
| 60 mph (96.56 km/h) | 56.2 mph (90.45 km/h) |
| 65 mph (104.61 km/h) | 60.89 mph (97.99 km/h) |
| 70 mph (112.65 km/h) | 65.57 mph (105.53 km/h) |
| 75 mph (120.7 km/h) | 70.26 mph (113.07 km/h) |
| 80 mph (128.75 km/h) | 74.94 mph (120.6 km/h) |
| 85 mph (136.79 km/h) | 79.62 mph (128.14 km/h) |
| 90 mph (144.84 km/h) | 84.31 mph (135.68 km/h) |
| 95 mph (152.89 km/h) | 88.99 mph (143.22 km/h) |
| 100 mph (160.93 km/h) | 93.67 mph (150.75 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1975 | 2294 | 2471 | 2580 | 2698 | 2782 | 2874 | 2983 | 3135 | 3286 | 3454 | 3588 | 3832 | 4101 | 4311 | 4445 | 4521 | 4798 | 5185 | 6025 |
Better Fuel Economy Factory Ratios Increased Power
