Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/80-12 | 215/35-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.76 (552.8) | 17.93 (455.3) | -3.84 (-97.5) -17.6% |
| Width inches (mm) | 6.1 (155) | 8.46 (215) | 2.36 (60) 38.7% |
| Circum. inches (mm) | 68.37 (1736.67) | 56.31 (1430.37) | -12.06 (-306.31) -17.6% |
| Sidewall Height inches (mm) | 4.88 (124) | 2.96 (75.25) | -1.92 (-48.75) -39.3% |
| Revolutions per mile (km) | 926.68 (575.81) | 1125.13 (699.12) | 198.44 (123.31) 21.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.47 mph (26.51 km/h) |
| 25 mph (40.23 km/h) | 20.59 mph (33.14 km/h) |
| 30 mph (48.28 km/h) | 24.71 mph (39.76 km/h) |
| 35 mph (56.33 km/h) | 28.83 mph (46.39 km/h) |
| 40 mph (64.37 km/h) | 32.95 mph (53.02 km/h) |
| 45 mph (72.42 km/h) | 37.06 mph (59.65 km/h) |
| 50 mph (80.47 km/h) | 41.18 mph (66.27 km/h) |
| 55 mph (88.51 km/h) | 45.3 mph (72.9 km/h) |
| 60 mph (96.56 km/h) | 49.42 mph (79.53 km/h) |
| 65 mph (104.61 km/h) | 53.54 mph (86.16 km/h) |
| 70 mph (112.65 km/h) | 57.65 mph (92.78 km/h) |
| 75 mph (120.7 km/h) | 61.77 mph (99.41 km/h) |
| 80 mph (128.75 km/h) | 65.89 mph (106.04 km/h) |
| 85 mph (136.79 km/h) | 70.01 mph (112.67 km/h) |
| 90 mph (144.84 km/h) | 74.13 mph (119.29 km/h) |
| 95 mph (152.89 km/h) | 78.24 mph (125.92 km/h) |
| 100 mph (160.93 km/h) | 82.36 mph (132.55 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
