Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/30-23 | 305/34-23 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.2 (767.2) | 31.17 (791.6) | 0.96 (24.4) 3.2% |
| Width inches (mm) | 12.01 (305) | 12.01 (305) | 0 (0) 0% |
| Circum. inches (mm) | 94.89 (2410.23) | 97.91 (2486.88) | 3.02 (76.65) 3.2% |
| Sidewall Height inches (mm) | 3.6 (91.5) | 4.08 (103.7) | 0.48 (12.2) 13.3% |
| Revolutions per mile (km) | 667.71 (414.9) | 647.13 (402.11) | -20.58 (-12.79) -3.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.64 mph (33.21 km/h) |
| 25 mph (40.23 km/h) | 25.8 mph (41.51 km/h) |
| 30 mph (48.28 km/h) | 30.95 mph (49.82 km/h) |
| 35 mph (56.33 km/h) | 36.11 mph (58.12 km/h) |
| 40 mph (64.37 km/h) | 41.27 mph (66.42 km/h) |
| 45 mph (72.42 km/h) | 46.43 mph (74.72 km/h) |
| 50 mph (80.47 km/h) | 51.59 mph (83.03 km/h) |
| 55 mph (88.51 km/h) | 56.75 mph (91.33 km/h) |
| 60 mph (96.56 km/h) | 61.91 mph (99.63 km/h) |
| 65 mph (104.61 km/h) | 67.07 mph (107.93 km/h) |
| 70 mph (112.65 km/h) | 72.23 mph (116.24 km/h) |
| 75 mph (120.7 km/h) | 77.39 mph (124.54 km/h) |
| 80 mph (128.75 km/h) | 82.54 mph (132.84 km/h) |
| 85 mph (136.79 km/h) | 87.7 mph (141.15 km/h) |
| 90 mph (144.84 km/h) | 92.86 mph (149.45 km/h) |
| 95 mph (152.89 km/h) | 98.02 mph (157.75 km/h) |
| 100 mph (160.93 km/h) | 103.18 mph (166.05 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1647 | 1913 | 2060 | 2151 | 2249 | 2320 | 2397 | 2488 | 2614 | 2740 | 2880 | 2992 | 3196 | 3420 | 3595 | 3707 | 3770 | 4001 | 4324 | 5025 |
Better Fuel Economy Factory Ratios Increased Power
