Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/40-23 | 285/35-23 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.61 (828.2) | 30.85 (783.7) | -1.75 (-44.5) -5.4% |
| Width inches (mm) | 12.01 (305) | 11.22 (285) | -0.79 (-20) -6.6% |
| Circum. inches (mm) | 102.44 (2601.87) | 96.93 (2462.07) | -5.5 (-139.8) -5.4% |
| Sidewall Height inches (mm) | 4.8 (122) | 3.93 (99.75) | -0.88 (-22.25) -18.2% |
| Revolutions per mile (km) | 618.53 (384.34) | 653.66 (406.16) | 35.12 (21.82) 5.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.93 mph (30.46 km/h) |
| 25 mph (40.23 km/h) | 23.66 mph (38.07 km/h) |
| 30 mph (48.28 km/h) | 28.39 mph (45.69 km/h) |
| 35 mph (56.33 km/h) | 33.12 mph (53.3 km/h) |
| 40 mph (64.37 km/h) | 37.85 mph (60.92 km/h) |
| 45 mph (72.42 km/h) | 42.58 mph (68.53 km/h) |
| 50 mph (80.47 km/h) | 47.31 mph (76.14 km/h) |
| 55 mph (88.51 km/h) | 52.04 mph (83.76 km/h) |
| 60 mph (96.56 km/h) | 56.78 mph (91.37 km/h) |
| 65 mph (104.61 km/h) | 61.51 mph (98.99 km/h) |
| 70 mph (112.65 km/h) | 66.24 mph (106.6 km/h) |
| 75 mph (120.7 km/h) | 70.97 mph (114.22 km/h) |
| 80 mph (128.75 km/h) | 75.7 mph (121.83 km/h) |
| 85 mph (136.79 km/h) | 80.43 mph (129.44 km/h) |
| 90 mph (144.84 km/h) | 85.16 mph (137.06 km/h) |
| 95 mph (152.89 km/h) | 89.9 mph (144.67 km/h) |
| 100 mph (160.93 km/h) | 94.63 mph (152.29 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1663 | 1932 | 2081 | 2173 | 2272 | 2343 | 2421 | 2513 | 2640 | 2768 | 2909 | 3022 | 3228 | 3454 | 3631 | 3744 | 3808 | 4042 | 4367 | 5075 |
Better Fuel Economy Factory Ratios Increased Power
