Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 260/65-18 | 270/75-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.31 (795.2) | 33.94 (862.2) | 2.64 (67) 8.4% |
| Width inches (mm) | 10.24 (260) | 10.63 (270) | 0.39 (10) 3.8% |
| Circum. inches (mm) | 98.35 (2498.19) | 106.64 (2708.68) | 8.29 (210.49) 8.4% |
| Sidewall Height inches (mm) | 6.65 (169) | 7.97 (202.5) | 1.32 (33.5) 19.8% |
| Revolutions per mile (km) | 644.2 (400.29) | 594.14 (369.18) | -50.06 (-31.11) -7.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.69 mph (34.9 km/h) |
| 25 mph (40.23 km/h) | 27.11 mph (43.62 km/h) |
| 30 mph (48.28 km/h) | 32.53 mph (52.35 km/h) |
| 35 mph (56.33 km/h) | 37.95 mph (61.07 km/h) |
| 40 mph (64.37 km/h) | 43.37 mph (69.8 km/h) |
| 45 mph (72.42 km/h) | 48.79 mph (78.52 km/h) |
| 50 mph (80.47 km/h) | 54.21 mph (87.25 km/h) |
| 55 mph (88.51 km/h) | 59.63 mph (95.97 km/h) |
| 60 mph (96.56 km/h) | 65.06 mph (104.7 km/h) |
| 65 mph (104.61 km/h) | 70.48 mph (113.42 km/h) |
| 70 mph (112.65 km/h) | 75.9 mph (122.15 km/h) |
| 75 mph (120.7 km/h) | 81.32 mph (130.87 km/h) |
| 80 mph (128.75 km/h) | 86.74 mph (139.6 km/h) |
| 85 mph (136.79 km/h) | 92.16 mph (148.32 km/h) |
| 90 mph (144.84 km/h) | 97.58 mph (157.04 km/h) |
| 95 mph (152.89 km/h) | 103 mph (165.77 km/h) |
| 100 mph (160.93 km/h) | 108.43 mph (174.49 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1512 | 1756 | 1892 | 1975 | 2065 | 2130 | 2200 | 2284 | 2400 | 2516 | 2644 | 2747 | 2934 | 3140 | 3301 | 3404 | 3461 | 3674 | 3970 | 4613 |
Better Fuel Economy Factory Ratios Increased Power
