Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-16 | 309/70-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.44 (595.4) | 33.03 (839) | 9.59 (243.6) 40.9% |
| Width inches (mm) | 5.31 (135) | 12.17 (309) | 6.85 (174) 128.9% |
| Circum. inches (mm) | 73.64 (1870.5) | 103.77 (2635.8) | 30.13 (765.29) 40.9% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 8.52 (216.3) | 4.8 (121.8) 128.9% |
| Revolutions per mile (km) | 860.38 (534.61) | 610.57 (379.39) | -249.81 (-155.22) -29% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28.18 mph (45.36 km/h) |
| 25 mph (40.23 km/h) | 35.23 mph (56.69 km/h) |
| 30 mph (48.28 km/h) | 42.27 mph (68.03 km/h) |
| 35 mph (56.33 km/h) | 49.32 mph (79.37 km/h) |
| 40 mph (64.37 km/h) | 56.37 mph (90.71 km/h) |
| 45 mph (72.42 km/h) | 63.41 mph (102.05 km/h) |
| 50 mph (80.47 km/h) | 70.46 mph (113.39 km/h) |
| 55 mph (88.51 km/h) | 77.5 mph (124.73 km/h) |
| 60 mph (96.56 km/h) | 84.55 mph (136.07 km/h) |
| 65 mph (104.61 km/h) | 91.59 mph (147.41 km/h) |
| 70 mph (112.65 km/h) | 98.64 mph (158.75 km/h) |
| 75 mph (120.7 km/h) | 105.69 mph (170.08 km/h) |
| 80 mph (128.75 km/h) | 112.73 mph (181.42 km/h) |
| 85 mph (136.79 km/h) | 119.78 mph (192.76 km/h) |
| 90 mph (144.84 km/h) | 126.82 mph (204.1 km/h) |
| 95 mph (152.89 km/h) | 133.87 mph (215.44 km/h) |
| 100 mph (160.93 km/h) | 140.91 mph (226.78 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1554 | 1805 | 1944 | 2030 | 2122 | 2189 | 2261 | 2347 | 2466 | 2585 | 2717 | 2823 | 3015 | 3227 | 3392 | 3498 | 3557 | 3775 | 4080 | 4741 |
Better Fuel Economy Factory Ratios Increased Power
