Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/30-23 | 305/25-25 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.2 (767.2) | 31 (787.5) | 0.8 (20.3) 2.6% |
| Width inches (mm) | 12.01 (305) | 12.01 (305) | 0 (0) 0% |
| Circum. inches (mm) | 94.89 (2410.23) | 97.4 (2474) | 2.51 (63.77) 2.6% |
| Sidewall Height inches (mm) | 3.6 (91.5) | 3 (76.25) | -0.6 (-15.25) -16.7% |
| Revolutions per mile (km) | 667.71 (414.9) | 650.5 (404.2) | -17.21 (-10.7) -2.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.53 mph (33.04 km/h) |
| 25 mph (40.23 km/h) | 25.66 mph (41.3 km/h) |
| 30 mph (48.28 km/h) | 30.79 mph (49.56 km/h) |
| 35 mph (56.33 km/h) | 35.93 mph (57.82 km/h) |
| 40 mph (64.37 km/h) | 41.06 mph (66.08 km/h) |
| 45 mph (72.42 km/h) | 46.19 mph (74.34 km/h) |
| 50 mph (80.47 km/h) | 51.32 mph (82.6 km/h) |
| 55 mph (88.51 km/h) | 56.46 mph (90.86 km/h) |
| 60 mph (96.56 km/h) | 61.59 mph (99.12 km/h) |
| 65 mph (104.61 km/h) | 66.72 mph (107.38 km/h) |
| 70 mph (112.65 km/h) | 71.85 mph (115.64 km/h) |
| 75 mph (120.7 km/h) | 76.98 mph (123.89 km/h) |
| 80 mph (128.75 km/h) | 82.12 mph (132.15 km/h) |
| 85 mph (136.79 km/h) | 87.25 mph (140.41 km/h) |
| 90 mph (144.84 km/h) | 92.38 mph (148.67 km/h) |
| 95 mph (152.89 km/h) | 97.51 mph (156.93 km/h) |
| 100 mph (160.93 km/h) | 102.65 mph (165.19 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1655 | 1923 | 2071 | 2163 | 2261 | 2332 | 2409 | 2501 | 2628 | 2754 | 2895 | 3008 | 3212 | 3438 | 3614 | 3726 | 3790 | 4022 | 4346 | 5051 |
Better Fuel Economy Factory Ratios Increased Power
