Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/45-16 | 235/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.16 (689.9) | 30.73 (780.5) | 3.57 (90.6) 13.1% |
| Width inches (mm) | 12.4 (315) | 9.25 (235) | -3.15 (-80) -25.4% |
| Circum. inches (mm) | 85.33 (2167.38) | 96.54 (2452.01) | 11.21 (284.63) 13.1% |
| Sidewall Height inches (mm) | 5.58 (141.75) | 7.86 (199.75) | 2.28 (58) 40.9% |
| Revolutions per mile (km) | 742.53 (461.38) | 656.34 (407.83) | -86.19 (-53.56) -11.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.63 mph (36.41 km/h) |
| 25 mph (40.23 km/h) | 28.28 mph (45.52 km/h) |
| 30 mph (48.28 km/h) | 33.94 mph (54.62 km/h) |
| 35 mph (56.33 km/h) | 39.6 mph (63.72 km/h) |
| 40 mph (64.37 km/h) | 45.25 mph (72.83 km/h) |
| 45 mph (72.42 km/h) | 50.91 mph (81.93 km/h) |
| 50 mph (80.47 km/h) | 56.57 mph (91.03 km/h) |
| 55 mph (88.51 km/h) | 62.22 mph (100.14 km/h) |
| 60 mph (96.56 km/h) | 67.88 mph (109.24 km/h) |
| 65 mph (104.61 km/h) | 73.54 mph (118.34 km/h) |
| 70 mph (112.65 km/h) | 79.19 mph (127.45 km/h) |
| 75 mph (120.7 km/h) | 84.85 mph (136.55 km/h) |
| 80 mph (128.75 km/h) | 90.51 mph (145.66 km/h) |
| 85 mph (136.79 km/h) | 96.16 mph (154.76 km/h) |
| 90 mph (144.84 km/h) | 101.82 mph (163.86 km/h) |
| 95 mph (152.89 km/h) | 107.48 mph (172.97 km/h) |
| 100 mph (160.93 km/h) | 113.13 mph (182.07 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1670 | 1940 | 2090 | 2182 | 2281 | 2353 | 2431 | 2523 | 2651 | 2779 | 2921 | 3035 | 3241 | 3468 | 3646 | 3760 | 3824 | 4058 | 4385 | 5096 |
Better Fuel Economy Factory Ratios Increased Power
