Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/70-12 | 90/90-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 18.61 (472.8) | 18.38 (466.8) | -0.24 (-6) -1.3% |
| Width inches (mm) | 4.72 (120) | 3.54 (90) | -1.18 (-30) -25% |
| Circum. inches (mm) | 58.48 (1485.35) | 57.74 (1466.5) | -0.74 (-18.85) -1.3% |
| Sidewall Height inches (mm) | 3.31 (84) | 3.19 (81) | -0.12 (-3) -3.6% |
| Revolutions per mile (km) | 1083.48 (673.24) | 1097.41 (681.9) | 13.93 (8.65) 1.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.75 mph (31.78 km/h) |
| 25 mph (40.23 km/h) | 24.68 mph (39.72 km/h) |
| 30 mph (48.28 km/h) | 29.62 mph (47.67 km/h) |
| 35 mph (56.33 km/h) | 34.56 mph (55.61 km/h) |
| 40 mph (64.37 km/h) | 39.49 mph (63.56 km/h) |
| 45 mph (72.42 km/h) | 44.43 mph (71.5 km/h) |
| 50 mph (80.47 km/h) | 49.37 mph (79.45 km/h) |
| 55 mph (88.51 km/h) | 54.3 mph (87.39 km/h) |
| 60 mph (96.56 km/h) | 59.24 mph (95.34 km/h) |
| 65 mph (104.61 km/h) | 64.18 mph (103.28 km/h) |
| 70 mph (112.65 km/h) | 69.11 mph (111.22 km/h) |
| 75 mph (120.7 km/h) | 74.05 mph (119.17 km/h) |
| 80 mph (128.75 km/h) | 78.98 mph (127.11 km/h) |
| 85 mph (136.79 km/h) | 83.92 mph (135.06 km/h) |
| 90 mph (144.84 km/h) | 88.86 mph (143 km/h) |
| 95 mph (152.89 km/h) | 93.79 mph (150.95 km/h) |
| 100 mph (160.93 km/h) | 98.73 mph (158.89 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
