Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/30-23 | 285/30-23 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.2 (767.2) | 29.73 (755.2) | -0.47 (-12) -1.6% |
| Width inches (mm) | 12.01 (305) | 11.22 (285) | -0.79 (-20) -6.6% |
| Circum. inches (mm) | 94.89 (2410.23) | 93.41 (2372.53) | -1.48 (-37.7) -1.6% |
| Sidewall Height inches (mm) | 3.6 (91.5) | 3.37 (85.5) | -0.24 (-6) -6.6% |
| Revolutions per mile (km) | 667.71 (414.9) | 678.32 (421.49) | 10.61 (6.59) 1.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.69 mph (31.68 km/h) |
| 25 mph (40.23 km/h) | 24.61 mph (39.6 km/h) |
| 30 mph (48.28 km/h) | 29.53 mph (47.53 km/h) |
| 35 mph (56.33 km/h) | 34.45 mph (55.45 km/h) |
| 40 mph (64.37 km/h) | 39.37 mph (63.37 km/h) |
| 45 mph (72.42 km/h) | 44.3 mph (71.29 km/h) |
| 50 mph (80.47 km/h) | 49.22 mph (79.21 km/h) |
| 55 mph (88.51 km/h) | 54.14 mph (87.13 km/h) |
| 60 mph (96.56 km/h) | 59.06 mph (95.05 km/h) |
| 65 mph (104.61 km/h) | 63.98 mph (102.97 km/h) |
| 70 mph (112.65 km/h) | 68.91 mph (110.89 km/h) |
| 75 mph (120.7 km/h) | 73.83 mph (118.81 km/h) |
| 80 mph (128.75 km/h) | 78.75 mph (126.73 km/h) |
| 85 mph (136.79 km/h) | 83.67 mph (134.65 km/h) |
| 90 mph (144.84 km/h) | 88.59 mph (142.58 km/h) |
| 95 mph (152.89 km/h) | 93.51 mph (150.5 km/h) |
| 100 mph (160.93 km/h) | 98.44 mph (158.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1726 | 2005 | 2160 | 2255 | 2358 | 2431 | 2512 | 2608 | 2740 | 2872 | 3019 | 3137 | 3350 | 3585 | 3768 | 3886 | 3952 | 4194 | 4532 | 5267 |
Better Fuel Economy Factory Ratios Increased Power
