Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/40-23 | 33/9.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.61 (828.2) | 32.9 (835.76) | 0.3 (7.56) 0.9% |
| Width inches (mm) | 12.01 (305) | 9.49 (241) | -2.52 (-64) -21% |
| Circum. inches (mm) | 102.44 (2601.87) | 103.37 (2625.62) | 0.94 (23.75) 0.9% |
| Sidewall Height inches (mm) | 4.8 (122) | 6.45 (163.88) | 1.65 (41.88) 34.3% |
| Revolutions per mile (km) | 618.53 (384.34) | 612.94 (380.86) | -5.6 (-3.48) -0.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.18 mph (32.48 km/h) |
| 25 mph (40.23 km/h) | 25.23 mph (40.6 km/h) |
| 30 mph (48.28 km/h) | 30.27 mph (48.72 km/h) |
| 35 mph (56.33 km/h) | 35.32 mph (56.84 km/h) |
| 40 mph (64.37 km/h) | 40.37 mph (64.96 km/h) |
| 45 mph (72.42 km/h) | 45.41 mph (73.08 km/h) |
| 50 mph (80.47 km/h) | 50.46 mph (81.2 km/h) |
| 55 mph (88.51 km/h) | 55.5 mph (89.32 km/h) |
| 60 mph (96.56 km/h) | 60.55 mph (97.44 km/h) |
| 65 mph (104.61 km/h) | 65.59 mph (105.56 km/h) |
| 70 mph (112.65 km/h) | 70.64 mph (113.68 km/h) |
| 75 mph (120.7 km/h) | 75.68 mph (121.8 km/h) |
| 80 mph (128.75 km/h) | 80.73 mph (129.92 km/h) |
| 85 mph (136.79 km/h) | 85.78 mph (138.04 km/h) |
| 90 mph (144.84 km/h) | 90.82 mph (146.16 km/h) |
| 95 mph (152.89 km/h) | 95.87 mph (154.28 km/h) |
| 100 mph (160.93 km/h) | 100.91 mph (162.4 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1560 | 1812 | 1951 | 2038 | 2131 | 2197 | 2270 | 2356 | 2476 | 2595 | 2728 | 2834 | 3027 | 3239 | 3405 | 3511 | 3571 | 3790 | 4095 | 4759 |
Better Fuel Economy Factory Ratios Increased Power
