Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/80-13 | 135/70-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.5 (546.2) | 19.44 (493.8) | -2.06 (-52.4) -9.6% |
| Width inches (mm) | 5.31 (135) | 5.31 (135) | 0 (0) 0% |
| Circum. inches (mm) | 67.56 (1715.94) | 61.08 (1551.32) | -6.48 (-164.62) -9.6% |
| Sidewall Height inches (mm) | 4.25 (108) | 3.72 (94.5) | -0.53 (-13.5) -12.5% |
| Revolutions per mile (km) | 937.88 (582.77) | 1037.4 (644.61) | 99.52 (61.84) 10.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.08 mph (29.1 km/h) |
| 25 mph (40.23 km/h) | 22.6 mph (36.37 km/h) |
| 30 mph (48.28 km/h) | 27.12 mph (43.65 km/h) |
| 35 mph (56.33 km/h) | 31.64 mph (50.92 km/h) |
| 40 mph (64.37 km/h) | 36.16 mph (58.2 km/h) |
| 45 mph (72.42 km/h) | 40.68 mph (65.47 km/h) |
| 50 mph (80.47 km/h) | 45.2 mph (72.75 km/h) |
| 55 mph (88.51 km/h) | 49.72 mph (80.02 km/h) |
| 60 mph (96.56 km/h) | 54.24 mph (87.3 km/h) |
| 65 mph (104.61 km/h) | 58.76 mph (94.57 km/h) |
| 70 mph (112.65 km/h) | 63.28 mph (101.85 km/h) |
| 75 mph (120.7 km/h) | 67.8 mph (109.12 km/h) |
| 80 mph (128.75 km/h) | 72.33 mph (116.4 km/h) |
| 85 mph (136.79 km/h) | 76.85 mph (123.67 km/h) |
| 90 mph (144.84 km/h) | 81.37 mph (130.95 km/h) |
| 95 mph (152.89 km/h) | 85.89 mph (138.22 km/h) |
| 100 mph (160.93 km/h) | 90.41 mph (145.5 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
