Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/25-23 | 325/30-23 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.2 (741.7) | 30.68 (779.2) | 1.48 (37.5) 5.1% |
| Width inches (mm) | 12.4 (315) | 12.8 (325) | 0.39 (10) 3.2% |
| Circum. inches (mm) | 91.74 (2330.12) | 96.38 (2447.93) | 4.64 (117.81) 5.1% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 3.84 (97.5) | 0.74 (18.75) 23.8% |
| Revolutions per mile (km) | 690.67 (429.16) | 657.43 (408.51) | -33.24 (-20.65) -4.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.01 mph (33.81 km/h) |
| 25 mph (40.23 km/h) | 26.26 mph (42.27 km/h) |
| 30 mph (48.28 km/h) | 31.52 mph (50.72 km/h) |
| 35 mph (56.33 km/h) | 36.77 mph (59.18 km/h) |
| 40 mph (64.37 km/h) | 42.02 mph (67.63 km/h) |
| 45 mph (72.42 km/h) | 47.28 mph (76.08 km/h) |
| 50 mph (80.47 km/h) | 52.53 mph (84.54 km/h) |
| 55 mph (88.51 km/h) | 57.78 mph (92.99 km/h) |
| 60 mph (96.56 km/h) | 63.03 mph (101.44 km/h) |
| 65 mph (104.61 km/h) | 68.29 mph (109.9 km/h) |
| 70 mph (112.65 km/h) | 73.54 mph (118.35 km/h) |
| 75 mph (120.7 km/h) | 78.79 mph (126.8 km/h) |
| 80 mph (128.75 km/h) | 84.04 mph (135.26 km/h) |
| 85 mph (136.79 km/h) | 89.3 mph (143.71 km/h) |
| 90 mph (144.84 km/h) | 94.55 mph (152.16 km/h) |
| 95 mph (152.89 km/h) | 99.8 mph (160.62 km/h) |
| 100 mph (160.93 km/h) | 105.06 mph (169.07 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1673 | 1944 | 2093 | 2186 | 2285 | 2356 | 2435 | 2527 | 2655 | 2784 | 2926 | 3040 | 3246 | 3474 | 3652 | 3766 | 3830 | 4065 | 4393 | 5105 |
Better Fuel Economy Factory Ratios Increased Power
