Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/80-13 | 135/40-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.5 (546.2) | 16.25 (412.8) | -5.25 (-133.4) -24.4% |
| Width inches (mm) | 5.31 (135) | 5.31 (135) | 0 (0) 0% |
| Circum. inches (mm) | 67.56 (1715.94) | 51.06 (1296.85) | -16.5 (-419.09) -24.4% |
| Sidewall Height inches (mm) | 4.25 (108) | 2.13 (54) | -2.13 (-54) -50% |
| Revolutions per mile (km) | 937.88 (582.77) | 1240.96 (771.1) | 303.08 (188.33) 32.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 15.12 mph (24.33 km/h) |
| 25 mph (40.23 km/h) | 18.89 mph (30.41 km/h) |
| 30 mph (48.28 km/h) | 22.67 mph (36.49 km/h) |
| 35 mph (56.33 km/h) | 26.45 mph (42.57 km/h) |
| 40 mph (64.37 km/h) | 30.23 mph (48.65 km/h) |
| 45 mph (72.42 km/h) | 34.01 mph (54.73 km/h) |
| 50 mph (80.47 km/h) | 37.79 mph (60.81 km/h) |
| 55 mph (88.51 km/h) | 41.57 mph (66.9 km/h) |
| 60 mph (96.56 km/h) | 45.35 mph (72.98 km/h) |
| 65 mph (104.61 km/h) | 49.12 mph (79.06 km/h) |
| 70 mph (112.65 km/h) | 52.9 mph (85.14 km/h) |
| 75 mph (120.7 km/h) | 56.68 mph (91.22 km/h) |
| 80 mph (128.75 km/h) | 60.46 mph (97.3 km/h) |
| 85 mph (136.79 km/h) | 64.24 mph (103.38 km/h) |
| 90 mph (144.84 km/h) | 68.02 mph (109.47 km/h) |
| 95 mph (152.89 km/h) | 71.8 mph (115.55 km/h) |
| 100 mph (160.93 km/h) | 75.58 mph (121.63 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
