Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/40-23 | 235/25-23 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.61 (828.2) | 27.63 (701.7) | -4.98 (-126.5) -15.3% |
| Width inches (mm) | 12.01 (305) | 9.25 (235) | -2.76 (-70) -23% |
| Circum. inches (mm) | 102.44 (2601.87) | 86.79 (2204.46) | -15.65 (-397.41) -15.3% |
| Sidewall Height inches (mm) | 4.8 (122) | 2.31 (58.75) | -2.49 (-63.25) -51.8% |
| Revolutions per mile (km) | 618.53 (384.34) | 730.04 (453.63) | 111.51 (69.29) 18% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.95 mph (27.27 km/h) |
| 25 mph (40.23 km/h) | 21.18 mph (34.09 km/h) |
| 30 mph (48.28 km/h) | 25.42 mph (40.91 km/h) |
| 35 mph (56.33 km/h) | 29.65 mph (47.72 km/h) |
| 40 mph (64.37 km/h) | 33.89 mph (54.54 km/h) |
| 45 mph (72.42 km/h) | 38.13 mph (61.36 km/h) |
| 50 mph (80.47 km/h) | 42.36 mph (68.18 km/h) |
| 55 mph (88.51 km/h) | 46.6 mph (74.99 km/h) |
| 60 mph (96.56 km/h) | 50.84 mph (81.81 km/h) |
| 65 mph (104.61 km/h) | 55.07 mph (88.63 km/h) |
| 70 mph (112.65 km/h) | 59.31 mph (95.45 km/h) |
| 75 mph (120.7 km/h) | 63.54 mph (102.27 km/h) |
| 80 mph (128.75 km/h) | 67.78 mph (109.08 km/h) |
| 85 mph (136.79 km/h) | 72.02 mph (115.9 km/h) |
| 90 mph (144.84 km/h) | 76.25 mph (122.72 km/h) |
| 95 mph (152.89 km/h) | 80.49 mph (129.54 km/h) |
| 100 mph (160.93 km/h) | 84.73 mph (136.35 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1858 | 2158 | 2324 | 2427 | 2538 | 2617 | 2704 | 2806 | 2949 | 3091 | 3249 | 3376 | 3605 | 3858 | 4056 | 4182 | 4253 | 4514 | 4878 | 5668 |
Better Fuel Economy Factory Ratios Increased Power
