Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/70-12 | 90/70-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 18.61 (472.8) | 16.96 (430.8) | -1.65 (-42) -8.9% |
| Width inches (mm) | 4.72 (120) | 3.54 (90) | -1.18 (-30) -25% |
| Circum. inches (mm) | 58.48 (1485.35) | 53.28 (1353.4) | -5.19 (-131.95) -8.9% |
| Sidewall Height inches (mm) | 3.31 (84) | 2.48 (63) | -0.83 (-21) -25% |
| Revolutions per mile (km) | 1083.48 (673.24) | 1189.11 (738.88) | 105.63 (65.64) 9.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.22 mph (29.33 km/h) |
| 25 mph (40.23 km/h) | 22.78 mph (36.66 km/h) |
| 30 mph (48.28 km/h) | 27.34 mph (43.99 km/h) |
| 35 mph (56.33 km/h) | 31.89 mph (51.32 km/h) |
| 40 mph (64.37 km/h) | 36.45 mph (58.66 km/h) |
| 45 mph (72.42 km/h) | 41 mph (65.99 km/h) |
| 50 mph (80.47 km/h) | 45.56 mph (73.32 km/h) |
| 55 mph (88.51 km/h) | 50.11 mph (80.65 km/h) |
| 60 mph (96.56 km/h) | 54.67 mph (87.98 km/h) |
| 65 mph (104.61 km/h) | 59.23 mph (95.32 km/h) |
| 70 mph (112.65 km/h) | 63.78 mph (102.65 km/h) |
| 75 mph (120.7 km/h) | 68.34 mph (109.98 km/h) |
| 80 mph (128.75 km/h) | 72.89 mph (117.31 km/h) |
| 85 mph (136.79 km/h) | 77.45 mph (124.64 km/h) |
| 90 mph (144.84 km/h) | 82.01 mph (131.97 km/h) |
| 95 mph (152.89 km/h) | 86.56 mph (139.31 km/h) |
| 100 mph (160.93 km/h) | 91.12 mph (146.64 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
