Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/35-21 | 335/30-21 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.68 (753.9) | 28.91 (734.4) | -0.77 (-19.5) -2.6% |
| Width inches (mm) | 12.4 (315) | 13.19 (335) | 0.79 (20) 6.3% |
| Circum. inches (mm) | 93.25 (2368.45) | 90.83 (2307.19) | -2.41 (-61.26) -2.6% |
| Sidewall Height inches (mm) | 4.34 (110.25) | 3.96 (100.5) | -0.38 (-9.75) -8.8% |
| Revolutions per mile (km) | 679.49 (422.22) | 697.54 (433.43) | 18.04 (11.21) 2.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.48 mph (31.35 km/h) |
| 25 mph (40.23 km/h) | 24.35 mph (39.19 km/h) |
| 30 mph (48.28 km/h) | 29.22 mph (47.03 km/h) |
| 35 mph (56.33 km/h) | 34.09 mph (54.87 km/h) |
| 40 mph (64.37 km/h) | 38.97 mph (62.71 km/h) |
| 45 mph (72.42 km/h) | 43.84 mph (70.55 km/h) |
| 50 mph (80.47 km/h) | 48.71 mph (78.39 km/h) |
| 55 mph (88.51 km/h) | 53.58 mph (86.22 km/h) |
| 60 mph (96.56 km/h) | 58.45 mph (94.06 km/h) |
| 65 mph (104.61 km/h) | 63.32 mph (101.9 km/h) |
| 70 mph (112.65 km/h) | 68.19 mph (109.74 km/h) |
| 75 mph (120.7 km/h) | 73.06 mph (117.58 km/h) |
| 80 mph (128.75 km/h) | 77.93 mph (125.42 km/h) |
| 85 mph (136.79 km/h) | 82.8 mph (133.26 km/h) |
| 90 mph (144.84 km/h) | 87.67 mph (141.09 km/h) |
| 95 mph (152.89 km/h) | 92.54 mph (148.93 km/h) |
| 100 mph (160.93 km/h) | 97.41 mph (156.77 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1775 | 2062 | 2221 | 2319 | 2425 | 2500 | 2583 | 2682 | 2817 | 2953 | 3105 | 3225 | 3444 | 3686 | 3875 | 3996 | 4064 | 4313 | 4661 | 5416 |
Better Fuel Economy Factory Ratios Increased Power
