Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 25/7.5-15 | 206/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.08 (636.94) | 26.35 (669.4) | 1.28 (32.46) 5.1% |
| Width inches (mm) | 7.52 (191) | 8.11 (206) | 0.59 (15) 7.9% |
| Circum. inches (mm) | 78.78 (2001.01) | 82.79 (2102.98) | 4.01 (101.98) 5.1% |
| Sidewall Height inches (mm) | 5.04 (127.97) | 5.68 (144.2) | 0.64 (16.23) 12.7% |
| Revolutions per mile (km) | 804.27 (499.75) | 765.27 (475.51) | -39 (-24.23) -4.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.02 mph (33.83 km/h) |
| 25 mph (40.23 km/h) | 26.27 mph (42.28 km/h) |
| 30 mph (48.28 km/h) | 31.53 mph (50.74 km/h) |
| 35 mph (56.33 km/h) | 36.78 mph (59.2 km/h) |
| 40 mph (64.37 km/h) | 42.04 mph (67.65 km/h) |
| 45 mph (72.42 km/h) | 47.29 mph (76.11 km/h) |
| 50 mph (80.47 km/h) | 52.55 mph (84.57 km/h) |
| 55 mph (88.51 km/h) | 57.8 mph (93.02 km/h) |
| 60 mph (96.56 km/h) | 63.06 mph (101.48 km/h) |
| 65 mph (104.61 km/h) | 68.31 mph (109.94 km/h) |
| 70 mph (112.65 km/h) | 73.57 mph (118.4 km/h) |
| 75 mph (120.7 km/h) | 78.82 mph (126.85 km/h) |
| 80 mph (128.75 km/h) | 84.08 mph (135.31 km/h) |
| 85 mph (136.79 km/h) | 89.33 mph (143.77 km/h) |
| 90 mph (144.84 km/h) | 94.59 mph (152.22 km/h) |
| 95 mph (152.89 km/h) | 99.84 mph (160.68 km/h) |
| 100 mph (160.93 km/h) | 105.1 mph (169.14 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1947 | 2262 | 2436 | 2544 | 2660 | 2743 | 2834 | 2942 | 3091 | 3240 | 3406 | 3539 | 3779 | 4044 | 4251 | 4384 | 4458 | 4732 | 5113 | 5942 |
Better Fuel Economy Factory Ratios Increased Power
