Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/30-30 | 275/30-24 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.44 (951) | 30.5 (774.6) | -6.94 (-176.4) -18.5% |
| Width inches (mm) | 12.4 (315) | 10.83 (275) | -1.57 (-40) -12.7% |
| Circum. inches (mm) | 117.62 (2987.65) | 95.81 (2433.48) | -21.82 (-554.18) -18.5% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 3.25 (82.5) | -0.47 (-12) -12.7% |
| Revolutions per mile (km) | 538.66 (334.71) | 661.34 (410.93) | 122.67 (76.22) 22.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.29 mph (26.22 km/h) |
| 25 mph (40.23 km/h) | 20.36 mph (32.77 km/h) |
| 30 mph (48.28 km/h) | 24.44 mph (39.32 km/h) |
| 35 mph (56.33 km/h) | 28.51 mph (45.88 km/h) |
| 40 mph (64.37 km/h) | 32.58 mph (52.43 km/h) |
| 45 mph (72.42 km/h) | 36.65 mph (58.99 km/h) |
| 50 mph (80.47 km/h) | 40.73 mph (65.54 km/h) |
| 55 mph (88.51 km/h) | 44.8 mph (72.1 km/h) |
| 60 mph (96.56 km/h) | 48.87 mph (78.65 km/h) |
| 65 mph (104.61 km/h) | 52.94 mph (85.2 km/h) |
| 70 mph (112.65 km/h) | 57.02 mph (91.76 km/h) |
| 75 mph (120.7 km/h) | 61.09 mph (98.31 km/h) |
| 80 mph (128.75 km/h) | 65.16 mph (104.87 km/h) |
| 85 mph (136.79 km/h) | 69.23 mph (111.42 km/h) |
| 90 mph (144.84 km/h) | 73.31 mph (117.97 km/h) |
| 95 mph (152.89 km/h) | 77.38 mph (124.53 km/h) |
| 100 mph (160.93 km/h) | 81.45 mph (131.08 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1683 | 1955 | 2106 | 2199 | 2299 | 2370 | 2449 | 2542 | 2671 | 2800 | 2943 | 3058 | 3266 | 3495 | 3674 | 3788 | 3853 | 4089 | 4419 | 5135 |
Better Fuel Economy Factory Ratios Increased Power
