Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 260/55-18 | 270/55-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.26 (743.2) | 29.69 (754.2) | 0.43 (11) 1.5% |
| Width inches (mm) | 10.24 (260) | 10.63 (270) | 0.39 (10) 3.8% |
| Circum. inches (mm) | 91.92 (2334.83) | 93.28 (2369.39) | 1.36 (34.56) 1.5% |
| Sidewall Height inches (mm) | 5.63 (143) | 5.85 (148.5) | 0.22 (5.5) 3.8% |
| Revolutions per mile (km) | 689.28 (428.3) | 679.22 (422.05) | -10.05 (-6.25) -1.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.3 mph (32.66 km/h) |
| 25 mph (40.23 km/h) | 25.37 mph (40.83 km/h) |
| 30 mph (48.28 km/h) | 30.44 mph (49 km/h) |
| 35 mph (56.33 km/h) | 35.52 mph (57.16 km/h) |
| 40 mph (64.37 km/h) | 40.59 mph (65.33 km/h) |
| 45 mph (72.42 km/h) | 45.67 mph (73.49 km/h) |
| 50 mph (80.47 km/h) | 50.74 mph (81.66 km/h) |
| 55 mph (88.51 km/h) | 55.81 mph (89.82 km/h) |
| 60 mph (96.56 km/h) | 60.89 mph (97.99 km/h) |
| 65 mph (104.61 km/h) | 65.96 mph (106.16 km/h) |
| 70 mph (112.65 km/h) | 71.04 mph (114.32 km/h) |
| 75 mph (120.7 km/h) | 76.11 mph (122.49 km/h) |
| 80 mph (128.75 km/h) | 81.18 mph (130.65 km/h) |
| 85 mph (136.79 km/h) | 86.26 mph (138.82 km/h) |
| 90 mph (144.84 km/h) | 91.33 mph (146.99 km/h) |
| 95 mph (152.89 km/h) | 96.41 mph (155.15 km/h) |
| 100 mph (160.93 km/h) | 101.48 mph (163.32 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1728 | 2008 | 2162 | 2258 | 2361 | 2435 | 2516 | 2611 | 2744 | 2876 | 3023 | 3141 | 3354 | 3589 | 3773 | 3891 | 3957 | 4200 | 4538 | 5274 |
Better Fuel Economy Factory Ratios Increased Power
