Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/25-20 | 30/10.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.81 (655.5) | 30.09 (764.32) | 4.28 (108.82) 16.6% |
| Width inches (mm) | 11.61 (295) | 10.51 (267) | -1.1 (-28) -9.5% |
| Circum. inches (mm) | 81.08 (2059.31) | 94.53 (2401.18) | 13.46 (341.87) 16.6% |
| Sidewall Height inches (mm) | 2.9 (73.75) | 5.05 (128.16) | 2.14 (54.41) 73.8% |
| Revolutions per mile (km) | 781.5 (485.6) | 670.23 (416.46) | -111.27 (-69.14) -14.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.32 mph (37.53 km/h) |
| 25 mph (40.23 km/h) | 29.15 mph (46.91 km/h) |
| 30 mph (48.28 km/h) | 34.98 mph (56.3 km/h) |
| 35 mph (56.33 km/h) | 40.81 mph (65.68 km/h) |
| 40 mph (64.37 km/h) | 46.64 mph (75.06 km/h) |
| 45 mph (72.42 km/h) | 52.47 mph (84.44 km/h) |
| 50 mph (80.47 km/h) | 58.3 mph (93.83 km/h) |
| 55 mph (88.51 km/h) | 64.13 mph (103.21 km/h) |
| 60 mph (96.56 km/h) | 69.96 mph (112.59 km/h) |
| 65 mph (104.61 km/h) | 75.79 mph (121.97 km/h) |
| 70 mph (112.65 km/h) | 81.62 mph (131.36 km/h) |
| 75 mph (120.7 km/h) | 87.45 mph (140.74 km/h) |
| 80 mph (128.75 km/h) | 93.28 mph (150.12 km/h) |
| 85 mph (136.79 km/h) | 99.11 mph (159.5 km/h) |
| 90 mph (144.84 km/h) | 104.94 mph (168.89 km/h) |
| 95 mph (152.89 km/h) | 110.77 mph (178.27 km/h) |
| 100 mph (160.93 km/h) | 116.6 mph (187.65 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1706 | 1981 | 2134 | 2228 | 2330 | 2402 | 2482 | 2577 | 2707 | 2838 | 2983 | 3099 | 3310 | 3542 | 3723 | 3839 | 3905 | 4144 | 4478 | 5204 |
Better Fuel Economy Factory Ratios Increased Power
