Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/85-16 | 205/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.73 (805.9) | 26.3 (668) | -5.43 (-137.9) -17.1% |
| Width inches (mm) | 9.25 (235) | 8.07 (205) | -1.18 (-30) -12.8% |
| Circum. inches (mm) | 99.68 (2531.81) | 82.62 (2098.58) | -17.06 (-433.23) -17.1% |
| Sidewall Height inches (mm) | 7.86 (199.75) | 5.65 (143.5) | -2.21 (-56.25) -28.2% |
| Revolutions per mile (km) | 635.65 (394.97) | 766.87 (476.51) | 131.22 (81.54) 20.6% |
205/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.58 mph (26.68 km/h) |
| 25 mph (40.23 km/h) | 20.72 mph (33.35 km/h) |
| 30 mph (48.28 km/h) | 24.87 mph (40.02 km/h) |
| 35 mph (56.33 km/h) | 29.01 mph (46.69 km/h) |
| 40 mph (64.37 km/h) | 33.16 mph (53.36 km/h) |
| 45 mph (72.42 km/h) | 37.3 mph (60.03 km/h) |
| 50 mph (80.47 km/h) | 41.44 mph (66.7 km/h) |
| 55 mph (88.51 km/h) | 45.59 mph (73.37 km/h) |
| 60 mph (96.56 km/h) | 49.73 mph (80.04 km/h) |
| 65 mph (104.61 km/h) | 53.88 mph (86.71 km/h) |
| 70 mph (112.65 km/h) | 58.02 mph (93.38 km/h) |
| 75 mph (120.7 km/h) | 62.17 mph (100.05 km/h) |
| 80 mph (128.75 km/h) | 66.31 mph (106.72 km/h) |
| 85 mph (136.79 km/h) | 70.46 mph (113.39 km/h) |
| 90 mph (144.84 km/h) | 74.6 mph (120.06 km/h) |
| 95 mph (152.89 km/h) | 78.74 mph (126.73 km/h) |
| 100 mph (160.93 km/h) | 82.89 mph (133.4 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1952 | 2267 | 2442 | 2549 | 2666 | 2749 | 2840 | 2948 | 3098 | 3247 | 3413 | 3546 | 3787 | 4053 | 4260 | 4393 | 4468 | 4742 | 5124 | 5954 |
Better Fuel Economy Factory Ratios Increased Power
