Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/35-15 | 325/40-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.51 (622.5) | 25.24 (641) | 0.73 (18.5) 3% |
| Width inches (mm) | 13.58 (345) | 12.8 (325) | -0.79 (-20) -5.8% |
| Circum. inches (mm) | 76.99 (1955.64) | 79.28 (2013.76) | 2.29 (58.12) 3% |
| Sidewall Height inches (mm) | 4.75 (120.75) | 5.12 (130) | 0.36 (9.25) 7.7% |
| Revolutions per mile (km) | 822.92 (511.34) | 799.17 (496.58) | -23.75 (-14.76) -2.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.59 mph (33.14 km/h) |
| 25 mph (40.23 km/h) | 25.74 mph (41.43 km/h) |
| 30 mph (48.28 km/h) | 30.89 mph (49.72 km/h) |
| 35 mph (56.33 km/h) | 36.04 mph (58 km/h) |
| 40 mph (64.37 km/h) | 41.19 mph (66.29 km/h) |
| 45 mph (72.42 km/h) | 46.34 mph (74.57 km/h) |
| 50 mph (80.47 km/h) | 51.49 mph (82.86 km/h) |
| 55 mph (88.51 km/h) | 56.63 mph (91.14 km/h) |
| 60 mph (96.56 km/h) | 61.78 mph (99.43 km/h) |
| 65 mph (104.61 km/h) | 66.93 mph (107.72 km/h) |
| 70 mph (112.65 km/h) | 72.08 mph (116 km/h) |
| 75 mph (120.7 km/h) | 77.23 mph (124.29 km/h) |
| 80 mph (128.75 km/h) | 82.38 mph (132.57 km/h) |
| 85 mph (136.79 km/h) | 87.53 mph (140.86 km/h) |
| 90 mph (144.84 km/h) | 92.67 mph (149.15 km/h) |
| 95 mph (152.89 km/h) | 97.82 mph (157.43 km/h) |
| 100 mph (160.93 km/h) | 102.97 mph (165.72 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2034 | 2363 | 2544 | 2657 | 2778 | 2865 | 2960 | 3072 | 3228 | 3384 | 3557 | 3695 | 3946 | 4223 | 4440 | 4578 | 4656 | 4942 | 5340 | 6205 |
Better Fuel Economy Factory Ratios Increased Power
