Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 335/30-20 | 275/30-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.91 (709) | 26.5 (673) | -1.42 (-36) -5.1% |
| Width inches (mm) | 13.19 (335) | 10.83 (275) | -2.36 (-60) -17.9% |
| Circum. inches (mm) | 87.69 (2227.39) | 83.24 (2114.29) | -4.45 (-113.1) -5.1% |
| Sidewall Height inches (mm) | 3.96 (100.5) | 3.25 (82.5) | -0.71 (-18) -17.9% |
| Revolutions per mile (km) | 722.52 (448.96) | 761.17 (472.97) | 38.65 (24.02) 5.3% |
275/30-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.98 mph (30.55 km/h) |
| 25 mph (40.23 km/h) | 23.73 mph (38.19 km/h) |
| 30 mph (48.28 km/h) | 28.48 mph (45.83 km/h) |
| 35 mph (56.33 km/h) | 33.22 mph (53.47 km/h) |
| 40 mph (64.37 km/h) | 37.97 mph (61.11 km/h) |
| 45 mph (72.42 km/h) | 42.72 mph (68.74 km/h) |
| 50 mph (80.47 km/h) | 47.46 mph (76.38 km/h) |
| 55 mph (88.51 km/h) | 52.21 mph (84.02 km/h) |
| 60 mph (96.56 km/h) | 56.95 mph (91.66 km/h) |
| 65 mph (104.61 km/h) | 61.7 mph (99.3 km/h) |
| 70 mph (112.65 km/h) | 66.45 mph (106.93 km/h) |
| 75 mph (120.7 km/h) | 71.19 mph (114.57 km/h) |
| 80 mph (128.75 km/h) | 75.94 mph (122.21 km/h) |
| 85 mph (136.79 km/h) | 80.68 mph (129.85 km/h) |
| 90 mph (144.84 km/h) | 85.43 mph (137.49 km/h) |
| 95 mph (152.89 km/h) | 90.18 mph (145.12 km/h) |
| 100 mph (160.93 km/h) | 94.92 mph (152.76 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1937 | 2250 | 2423 | 2531 | 2646 | 2728 | 2819 | 2926 | 3075 | 3223 | 3388 | 3520 | 3759 | 4022 | 4229 | 4360 | 4435 | 4707 | 5086 | 5910 |
Better Fuel Economy Factory Ratios Increased Power
