Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 260/55-18 | 300/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.26 (743.2) | 26.27 (667.2) | -2.99 (-76) -10.2% |
| Width inches (mm) | 10.24 (260) | 11.81 (300) | 1.57 (40) 15.4% |
| Circum. inches (mm) | 91.92 (2334.83) | 82.52 (2096.07) | -9.4 (-238.76) -10.2% |
| Sidewall Height inches (mm) | 5.63 (143) | 4.13 (105) | -1.5 (-38) -26.6% |
| Revolutions per mile (km) | 689.28 (428.3) | 767.79 (477.08) | 78.51 (48.79) 11.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.95 mph (28.9 km/h) |
| 25 mph (40.23 km/h) | 22.44 mph (36.12 km/h) |
| 30 mph (48.28 km/h) | 26.93 mph (43.34 km/h) |
| 35 mph (56.33 km/h) | 31.42 mph (50.57 km/h) |
| 40 mph (64.37 km/h) | 35.91 mph (57.79 km/h) |
| 45 mph (72.42 km/h) | 40.4 mph (65.01 km/h) |
| 50 mph (80.47 km/h) | 44.89 mph (72.24 km/h) |
| 55 mph (88.51 km/h) | 49.38 mph (79.46 km/h) |
| 60 mph (96.56 km/h) | 53.86 mph (86.69 km/h) |
| 65 mph (104.61 km/h) | 58.35 mph (93.91 km/h) |
| 70 mph (112.65 km/h) | 62.84 mph (101.13 km/h) |
| 75 mph (120.7 km/h) | 67.33 mph (108.36 km/h) |
| 80 mph (128.75 km/h) | 71.82 mph (115.58 km/h) |
| 85 mph (136.79 km/h) | 76.31 mph (122.81 km/h) |
| 90 mph (144.84 km/h) | 80.8 mph (130.03 km/h) |
| 95 mph (152.89 km/h) | 85.29 mph (137.25 km/h) |
| 100 mph (160.93 km/h) | 89.77 mph (144.48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1954 | 2270 | 2444 | 2553 | 2669 | 2752 | 2844 | 2952 | 3101 | 3251 | 3417 | 3550 | 3791 | 4057 | 4265 | 4398 | 4473 | 4748 | 5130 | 5961 |
Better Fuel Economy Factory Ratios Increased Power
