Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/30-26 | 305/30-30 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.2 (843.4) | 37.2 (945) | 4 (101.6) 12% |
| Width inches (mm) | 12.01 (305) | 12.01 (305) | 0 (0) 0% |
| Circum. inches (mm) | 104.32 (2649.62) | 116.88 (2968.81) | 12.57 (319.19) 12% |
| Sidewall Height inches (mm) | 3.6 (91.5) | 3.6 (91.5) | 0 (0) 0% |
| Revolutions per mile (km) | 607.39 (377.41) | 542.08 (336.84) | -65.3 (-40.58) -10.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.41 mph (36.06 km/h) |
| 25 mph (40.23 km/h) | 28.01 mph (45.08 km/h) |
| 30 mph (48.28 km/h) | 33.61 mph (54.1 km/h) |
| 35 mph (56.33 km/h) | 39.22 mph (63.11 km/h) |
| 40 mph (64.37 km/h) | 44.82 mph (72.13 km/h) |
| 45 mph (72.42 km/h) | 50.42 mph (81.14 km/h) |
| 50 mph (80.47 km/h) | 56.02 mph (90.16 km/h) |
| 55 mph (88.51 km/h) | 61.63 mph (99.18 km/h) |
| 60 mph (96.56 km/h) | 67.23 mph (108.19 km/h) |
| 65 mph (104.61 km/h) | 72.83 mph (117.21 km/h) |
| 70 mph (112.65 km/h) | 78.43 mph (126.23 km/h) |
| 75 mph (120.7 km/h) | 84.03 mph (135.24 km/h) |
| 80 mph (128.75 km/h) | 89.64 mph (144.26 km/h) |
| 85 mph (136.79 km/h) | 95.24 mph (153.27 km/h) |
| 90 mph (144.84 km/h) | 100.84 mph (162.29 km/h) |
| 95 mph (152.89 km/h) | 106.44 mph (171.31 km/h) |
| 100 mph (160.93 km/h) | 112.05 mph (180.32 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1380 | 1603 | 1726 | 1802 | 1884 | 1943 | 2008 | 2084 | 2190 | 2295 | 2413 | 2507 | 2677 | 2865 | 3011 | 3105 | 3158 | 3352 | 3622 | 4209 |
Better Fuel Economy Factory Ratios Increased Power
