Accepts P-Metric and Inches
| 125/65-12 | 135/65-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 18.4 (467.3) | 18.91 (480.3) | 0.51 (13) 2.8% |
| Width inches (mm) | 4.92 (125) | 5.31 (135) | 0.39 (10) 8% |
| Circum. inches (mm) | 57.8 (1468.07) | 59.41 (1508.91) | 1.61 (40.84) 2.8% |
| Sidewall Height inches (mm) | 3.2 (81.25) | 3.45 (87.75) | 0.26 (6.5) 8% |
| Revolutions per mile (km) | 1096.23 (681.17) | 1066.56 (662.73) | -29.67 (-18.44) -2.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.56 mph (33.08 km/h) |
| 25 mph (40.23 km/h) | 25.7 mph (41.35 km/h) |
| 30 mph (48.28 km/h) | 30.83 mph (49.62 km/h) |
| 35 mph (56.33 km/h) | 35.97 mph (57.89 km/h) |
| 40 mph (64.37 km/h) | 41.11 mph (66.16 km/h) |
| 45 mph (72.42 km/h) | 46.25 mph (74.44 km/h) |
| 50 mph (80.47 km/h) | 51.39 mph (82.71 km/h) |
| 55 mph (88.51 km/h) | 56.53 mph (90.98 km/h) |
| 60 mph (96.56 km/h) | 61.67 mph (99.25 km/h) |
| 65 mph (104.61 km/h) | 66.81 mph (107.52 km/h) |
| 70 mph (112.65 km/h) | 71.95 mph (115.79 km/h) |
| 75 mph (120.7 km/h) | 77.09 mph (124.06 km/h) |
| 80 mph (128.75 km/h) | 82.23 mph (132.33 km/h) |
| 85 mph (136.79 km/h) | 87.36 mph (140.6 km/h) |
| 90 mph (144.84 km/h) | 92.5 mph (148.87 km/h) |
| 95 mph (152.89 km/h) | 97.64 mph (157.14 km/h) |
| 100 mph (160.93 km/h) | 102.78 mph (165.41 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


