Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 25/7.5-15 | 225/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.08 (636.94) | 26.52 (673.5) | 1.44 (36.56) 5.7% |
| Width inches (mm) | 7.52 (191) | 8.86 (225) | 1.34 (34) 17.8% |
| Circum. inches (mm) | 78.78 (2001.01) | 83.3 (2115.86) | 4.52 (114.86) 5.7% |
| Sidewall Height inches (mm) | 5.04 (127.97) | 5.76 (146.25) | 0.72 (18.28) 14.3% |
| Revolutions per mile (km) | 804.27 (499.75) | 760.61 (472.62) | -43.66 (-27.13) -5.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.15 mph (34.03 km/h) |
| 25 mph (40.23 km/h) | 26.43 mph (42.54 km/h) |
| 30 mph (48.28 km/h) | 31.72 mph (51.05 km/h) |
| 35 mph (56.33 km/h) | 37.01 mph (59.56 km/h) |
| 40 mph (64.37 km/h) | 42.3 mph (68.07 km/h) |
| 45 mph (72.42 km/h) | 47.58 mph (76.58 km/h) |
| 50 mph (80.47 km/h) | 52.87 mph (85.09 km/h) |
| 55 mph (88.51 km/h) | 58.16 mph (93.59 km/h) |
| 60 mph (96.56 km/h) | 63.44 mph (102.1 km/h) |
| 65 mph (104.61 km/h) | 68.73 mph (110.61 km/h) |
| 70 mph (112.65 km/h) | 74.02 mph (119.12 km/h) |
| 75 mph (120.7 km/h) | 79.3 mph (127.63 km/h) |
| 80 mph (128.75 km/h) | 84.59 mph (136.14 km/h) |
| 85 mph (136.79 km/h) | 89.88 mph (144.65 km/h) |
| 90 mph (144.84 km/h) | 95.17 mph (153.16 km/h) |
| 95 mph (152.89 km/h) | 100.45 mph (161.66 km/h) |
| 100 mph (160.93 km/h) | 105.74 mph (170.17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1936 | 2249 | 2422 | 2529 | 2644 | 2726 | 2817 | 2924 | 3072 | 3221 | 3385 | 3517 | 3756 | 4019 | 4225 | 4357 | 4431 | 4703 | 5082 | 5906 |
Better Fuel Economy Factory Ratios Increased Power
