Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/30-26 | 37/13.5-26 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.2 (843.4) | 37.07 (941.66) | 3.87 (98.26) 11.7% |
| Width inches (mm) | 12.01 (305) | 13.5 (343) | 1.5 (38) 12.5% |
| Circum. inches (mm) | 104.32 (2649.62) | 116.47 (2958.31) | 12.15 (308.69) 11.7% |
| Sidewall Height inches (mm) | 3.6 (91.5) | 5.54 (140.63) | 1.93 (49.13) 53.7% |
| Revolutions per mile (km) | 607.39 (377.41) | 544.01 (338.03) | -63.38 (-39.38) -10.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.33 mph (35.94 km/h) |
| 25 mph (40.23 km/h) | 27.91 mph (44.92 km/h) |
| 30 mph (48.28 km/h) | 33.5 mph (53.91 km/h) |
| 35 mph (56.33 km/h) | 39.08 mph (62.89 km/h) |
| 40 mph (64.37 km/h) | 44.66 mph (71.87 km/h) |
| 45 mph (72.42 km/h) | 50.24 mph (80.86 km/h) |
| 50 mph (80.47 km/h) | 55.83 mph (89.84 km/h) |
| 55 mph (88.51 km/h) | 61.41 mph (98.83 km/h) |
| 60 mph (96.56 km/h) | 66.99 mph (107.81 km/h) |
| 65 mph (104.61 km/h) | 72.57 mph (116.79 km/h) |
| 70 mph (112.65 km/h) | 78.16 mph (125.78 km/h) |
| 75 mph (120.7 km/h) | 83.74 mph (134.76 km/h) |
| 80 mph (128.75 km/h) | 89.32 mph (143.75 km/h) |
| 85 mph (136.79 km/h) | 94.9 mph (152.73 km/h) |
| 90 mph (144.84 km/h) | 100.49 mph (161.72 km/h) |
| 95 mph (152.89 km/h) | 106.07 mph (170.7 km/h) |
| 100 mph (160.93 km/h) | 111.65 mph (179.68 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1384 | 1608 | 1732 | 1809 | 1891 | 1950 | 2015 | 2091 | 2197 | 2303 | 2421 | 2515 | 2686 | 2875 | 3022 | 3116 | 3169 | 3364 | 3635 | 4224 |
Better Fuel Economy Factory Ratios Increased Power
