Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/50-12 | 205/35-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.46 (519.8) | 17.65 (448.3) | -2.81 (-71.5) -13.8% |
| Width inches (mm) | 8.46 (215) | 8.07 (205) | -0.39 (-10) -4.7% |
| Circum. inches (mm) | 64.29 (1633) | 55.45 (1408.38) | -8.84 (-224.62) -13.8% |
| Sidewall Height inches (mm) | 4.23 (107.5) | 2.82 (71.75) | -1.41 (-35.75) -33.3% |
| Revolutions per mile (km) | 985.51 (612.37) | 1142.69 (710.04) | 157.18 (97.67) 15.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.25 mph (27.76 km/h) |
| 25 mph (40.23 km/h) | 21.56 mph (34.7 km/h) |
| 30 mph (48.28 km/h) | 25.87 mph (41.64 km/h) |
| 35 mph (56.33 km/h) | 30.19 mph (48.58 km/h) |
| 40 mph (64.37 km/h) | 34.5 mph (55.52 km/h) |
| 45 mph (72.42 km/h) | 38.81 mph (62.46 km/h) |
| 50 mph (80.47 km/h) | 43.12 mph (69.4 km/h) |
| 55 mph (88.51 km/h) | 47.43 mph (76.34 km/h) |
| 60 mph (96.56 km/h) | 51.75 mph (83.28 km/h) |
| 65 mph (104.61 km/h) | 56.06 mph (90.22 km/h) |
| 70 mph (112.65 km/h) | 60.37 mph (97.16 km/h) |
| 75 mph (120.7 km/h) | 64.68 mph (104.1 km/h) |
| 80 mph (128.75 km/h) | 69 mph (111.04 km/h) |
| 85 mph (136.79 km/h) | 73.31 mph (117.98 km/h) |
| 90 mph (144.84 km/h) | 77.62 mph (124.92 km/h) |
| 95 mph (152.89 km/h) | 81.93 mph (131.86 km/h) |
| 100 mph (160.93 km/h) | 86.24 mph (138.8 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
