Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/35-15 | 305/30-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.58 (573.5) | 22.2 (564) | -0.37 (-9.5) -1.7% |
| Width inches (mm) | 10.83 (275) | 12.01 (305) | 1.18 (30) 10.9% |
| Circum. inches (mm) | 70.93 (1801.7) | 69.76 (1771.86) | -1.18 (-29.85) -1.7% |
| Sidewall Height inches (mm) | 3.79 (96.25) | 3.6 (91.5) | -0.19 (-4.75) -4.9% |
| Revolutions per mile (km) | 893.23 (555.03) | 908.28 (564.38) | 15.05 (9.35) 1.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.67 mph (31.65 km/h) |
| 25 mph (40.23 km/h) | 24.59 mph (39.57 km/h) |
| 30 mph (48.28 km/h) | 29.5 mph (47.48 km/h) |
| 35 mph (56.33 km/h) | 34.42 mph (55.39 km/h) |
| 40 mph (64.37 km/h) | 39.34 mph (63.31 km/h) |
| 45 mph (72.42 km/h) | 44.25 mph (71.22 km/h) |
| 50 mph (80.47 km/h) | 49.17 mph (79.13 km/h) |
| 55 mph (88.51 km/h) | 54.09 mph (87.05 km/h) |
| 60 mph (96.56 km/h) | 59.01 mph (94.96 km/h) |
| 65 mph (104.61 km/h) | 63.92 mph (102.87 km/h) |
| 70 mph (112.65 km/h) | 68.84 mph (110.79 km/h) |
| 75 mph (120.7 km/h) | 73.76 mph (118.7 km/h) |
| 80 mph (128.75 km/h) | 78.67 mph (126.62 km/h) |
| 85 mph (136.79 km/h) | 83.59 mph (134.53 km/h) |
| 90 mph (144.84 km/h) | 88.51 mph (142.44 km/h) |
| 95 mph (152.89 km/h) | 93.43 mph (150.36 km/h) |
| 100 mph (160.93 km/h) | 98.34 mph (158.27 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2311 | 2685 | 2892 | 3020 | 3157 | 3256 | 3364 | 3492 | 3669 | 3846 | 4042 | 4200 | 4485 | 4800 | 5046 | 5203 | 5292 | 5616 | 6069 | 7052 |
Better Fuel Economy Factory Ratios Increased Power
