Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/30-20 | 255/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.26 (667) | 27.03 (686.5) | 0.77 (19.5) 2.9% |
| Width inches (mm) | 10.43 (265) | 10.04 (255) | -0.39 (-10) -3.8% |
| Circum. inches (mm) | 82.5 (2095.44) | 84.91 (2156.7) | 2.41 (61.26) 2.9% |
| Sidewall Height inches (mm) | 3.13 (79.5) | 3.51 (89.25) | 0.38 (9.75) 12.3% |
| Revolutions per mile (km) | 768.02 (477.23) | 746.21 (463.67) | -21.82 (-13.56) -2.8% |
255/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.58 mph (33.13 km/h) |
| 25 mph (40.23 km/h) | 25.73 mph (41.41 km/h) |
| 30 mph (48.28 km/h) | 30.88 mph (49.69 km/h) |
| 35 mph (56.33 km/h) | 36.02 mph (57.97 km/h) |
| 40 mph (64.37 km/h) | 41.17 mph (66.26 km/h) |
| 45 mph (72.42 km/h) | 46.32 mph (74.54 km/h) |
| 50 mph (80.47 km/h) | 51.46 mph (82.82 km/h) |
| 55 mph (88.51 km/h) | 56.61 mph (91.1 km/h) |
| 60 mph (96.56 km/h) | 61.75 mph (99.38 km/h) |
| 65 mph (104.61 km/h) | 66.9 mph (107.67 km/h) |
| 70 mph (112.65 km/h) | 72.05 mph (115.95 km/h) |
| 75 mph (120.7 km/h) | 77.19 mph (124.23 km/h) |
| 80 mph (128.75 km/h) | 82.34 mph (132.51 km/h) |
| 85 mph (136.79 km/h) | 87.49 mph (140.79 km/h) |
| 90 mph (144.84 km/h) | 92.63 mph (149.08 km/h) |
| 95 mph (152.89 km/h) | 97.78 mph (157.36 km/h) |
| 100 mph (160.93 km/h) | 102.92 mph (165.64 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1899 | 2206 | 2376 | 2481 | 2594 | 2675 | 2764 | 2869 | 3014 | 3160 | 3321 | 3450 | 3685 | 3943 | 4145 | 4275 | 4347 | 4614 | 4986 | 5794 |
Better Fuel Economy Factory Ratios Increased Power
