Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/40-23 | 35/11.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.61 (828.2) | 34.94 (887.6) | 2.34 (59.4) 7.2% |
| Width inches (mm) | 12.01 (305) | 11.5 (292) | -0.51 (-13) -4.3% |
| Circum. inches (mm) | 102.44 (2601.87) | 109.78 (2788.48) | 7.35 (186.61) 7.2% |
| Sidewall Height inches (mm) | 4.8 (122) | 7.47 (189.8) | 2.67 (67.8) 55.6% |
| Revolutions per mile (km) | 618.53 (384.34) | 577.14 (358.62) | -41.39 (-25.72) -6.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.43 mph (34.5 km/h) |
| 25 mph (40.23 km/h) | 26.79 mph (43.12 km/h) |
| 30 mph (48.28 km/h) | 32.15 mph (51.74 km/h) |
| 35 mph (56.33 km/h) | 37.51 mph (60.37 km/h) |
| 40 mph (64.37 km/h) | 42.87 mph (68.99 km/h) |
| 45 mph (72.42 km/h) | 48.23 mph (77.61 km/h) |
| 50 mph (80.47 km/h) | 53.59 mph (86.24 km/h) |
| 55 mph (88.51 km/h) | 58.94 mph (94.86 km/h) |
| 60 mph (96.56 km/h) | 64.3 mph (103.49 km/h) |
| 65 mph (104.61 km/h) | 69.66 mph (112.11 km/h) |
| 70 mph (112.65 km/h) | 75.02 mph (120.73 km/h) |
| 75 mph (120.7 km/h) | 80.38 mph (129.36 km/h) |
| 80 mph (128.75 km/h) | 85.74 mph (137.98 km/h) |
| 85 mph (136.79 km/h) | 91.1 mph (146.61 km/h) |
| 90 mph (144.84 km/h) | 96.45 mph (155.23 km/h) |
| 95 mph (152.89 km/h) | 101.81 mph (163.85 km/h) |
| 100 mph (160.93 km/h) | 107.17 mph (172.48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1469 | 1706 | 1837 | 1919 | 2006 | 2069 | 2137 | 2219 | 2331 | 2444 | 2569 | 2669 | 2850 | 3050 | 3206 | 3306 | 3362 | 3569 | 3856 | 4481 |
Better Fuel Economy Factory Ratios Increased Power
