Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/55-15 | 215/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.18 (639.5) | 27.7 (703.5) | 2.52 (64) 10% |
| Width inches (mm) | 9.25 (235) | 8.46 (215) | -0.79 (-20) -8.5% |
| Circum. inches (mm) | 79.1 (2009.05) | 87.01 (2210.11) | 7.92 (201.06) 10% |
| Sidewall Height inches (mm) | 5.09 (129.25) | 6.35 (161.25) | 1.26 (32) 24.8% |
| Revolutions per mile (km) | 801.05 (497.75) | 728.17 (452.47) | -72.87 (-45.28) -9.1% |
215/75-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22 mph (35.41 km/h) |
| 25 mph (40.23 km/h) | 27.5 mph (44.26 km/h) |
| 30 mph (48.28 km/h) | 33 mph (53.11 km/h) |
| 35 mph (56.33 km/h) | 38.5 mph (61.96 km/h) |
| 40 mph (64.37 km/h) | 44 mph (70.82 km/h) |
| 45 mph (72.42 km/h) | 49.5 mph (79.67 km/h) |
| 50 mph (80.47 km/h) | 55 mph (88.52 km/h) |
| 55 mph (88.51 km/h) | 60.5 mph (97.37 km/h) |
| 60 mph (96.56 km/h) | 66 mph (106.22 km/h) |
| 65 mph (104.61 km/h) | 71.51 mph (115.08 km/h) |
| 70 mph (112.65 km/h) | 77.01 mph (123.93 km/h) |
| 75 mph (120.7 km/h) | 82.51 mph (132.78 km/h) |
| 80 mph (128.75 km/h) | 88.01 mph (141.63 km/h) |
| 85 mph (136.79 km/h) | 93.51 mph (150.48 km/h) |
| 90 mph (144.84 km/h) | 99.01 mph (159.34 km/h) |
| 95 mph (152.89 km/h) | 104.51 mph (168.19 km/h) |
| 100 mph (160.93 km/h) | 110.01 mph (177.04 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1853 | 2153 | 2318 | 2421 | 2531 | 2610 | 2697 | 2799 | 2941 | 3083 | 3241 | 3367 | 3596 | 3848 | 4045 | 4171 | 4242 | 4503 | 4865 | 5654 |
Better Fuel Economy Factory Ratios Increased Power
