Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-16.5 | 34.5/12.5-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.97 (786.6) | 34.53 (876.96) | 3.56 (90.36) 11.5% |
| Width inches (mm) | 9.65 (245) | 12.52 (318) | 2.87 (73) 29.8% |
| Circum. inches (mm) | 97.29 (2471.18) | 108.47 (2755.05) | 11.18 (283.87) 11.5% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 8.26 (209.88) | 1.03 (26.13) 14.2% |
| Revolutions per mile (km) | 651.25 (404.66) | 584.14 (362.97) | -67.1 (-41.7) -10.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.3 mph (35.88 km/h) |
| 25 mph (40.23 km/h) | 27.87 mph (44.86 km/h) |
| 30 mph (48.28 km/h) | 33.45 mph (53.83 km/h) |
| 35 mph (56.33 km/h) | 39.02 mph (62.8 km/h) |
| 40 mph (64.37 km/h) | 44.59 mph (71.77 km/h) |
| 45 mph (72.42 km/h) | 50.17 mph (80.74 km/h) |
| 50 mph (80.47 km/h) | 55.74 mph (89.71 km/h) |
| 55 mph (88.51 km/h) | 61.32 mph (98.68 km/h) |
| 60 mph (96.56 km/h) | 66.89 mph (107.65 km/h) |
| 65 mph (104.61 km/h) | 72.47 mph (116.62 km/h) |
| 70 mph (112.65 km/h) | 78.04 mph (125.6 km/h) |
| 75 mph (120.7 km/h) | 83.62 mph (134.57 km/h) |
| 80 mph (128.75 km/h) | 89.19 mph (143.54 km/h) |
| 85 mph (136.79 km/h) | 94.76 mph (152.51 km/h) |
| 90 mph (144.84 km/h) | 100.34 mph (161.48 km/h) |
| 95 mph (152.89 km/h) | 105.91 mph (170.45 km/h) |
| 100 mph (160.93 km/h) | 111.49 mph (179.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1487 | 1727 | 1860 | 1942 | 2031 | 2094 | 2163 | 2246 | 2359 | 2473 | 2600 | 2701 | 2885 | 3087 | 3245 | 3346 | 3403 | 3612 | 3903 | 4536 |
Better Fuel Economy Factory Ratios Increased Power
