Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/75-15 | 205/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.88 (733.5) | 26.3 (668) | -2.58 (-65.5) -8.9% |
| Width inches (mm) | 9.25 (235) | 8.07 (205) | -1.18 (-30) -12.8% |
| Circum. inches (mm) | 90.72 (2304.36) | 82.62 (2098.58) | -8.1 (-205.77) -8.9% |
| Sidewall Height inches (mm) | 6.94 (176.25) | 5.65 (143.5) | -1.29 (-32.75) -18.6% |
| Revolutions per mile (km) | 698.39 (433.96) | 766.87 (476.51) | 68.48 (42.55) 9.8% |
205/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.21 mph (29.31 km/h) |
| 25 mph (40.23 km/h) | 22.77 mph (36.64 km/h) |
| 30 mph (48.28 km/h) | 27.32 mph (43.97 km/h) |
| 35 mph (56.33 km/h) | 31.87 mph (51.3 km/h) |
| 40 mph (64.37 km/h) | 36.43 mph (58.63 km/h) |
| 45 mph (72.42 km/h) | 40.98 mph (65.95 km/h) |
| 50 mph (80.47 km/h) | 45.54 mph (73.28 km/h) |
| 55 mph (88.51 km/h) | 50.09 mph (80.61 km/h) |
| 60 mph (96.56 km/h) | 54.64 mph (87.94 km/h) |
| 65 mph (104.61 km/h) | 59.2 mph (95.27 km/h) |
| 70 mph (112.65 km/h) | 63.75 mph (102.59 km/h) |
| 75 mph (120.7 km/h) | 68.3 mph (109.92 km/h) |
| 80 mph (128.75 km/h) | 72.86 mph (117.25 km/h) |
| 85 mph (136.79 km/h) | 77.41 mph (124.58 km/h) |
| 90 mph (144.84 km/h) | 81.96 mph (131.91 km/h) |
| 95 mph (152.89 km/h) | 86.52 mph (139.24 km/h) |
| 100 mph (160.93 km/h) | 91.07 mph (146.56 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
