Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/60-15 | 235/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.63 (651) | 27.03 (686.5) | 1.4 (35.5) 5.5% |
| Width inches (mm) | 8.86 (225) | 9.25 (235) | 0.39 (10) 4.4% |
| Circum. inches (mm) | 80.52 (2045.18) | 84.91 (2156.7) | 4.39 (111.53) 5.5% |
| Sidewall Height inches (mm) | 5.31 (135) | 6.01 (152.75) | 0.7 (17.75) 13.1% |
| Revolutions per mile (km) | 786.9 (488.95) | 746.21 (463.67) | -40.69 (-25.28) -5.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.09 mph (33.94 km/h) |
| 25 mph (40.23 km/h) | 26.36 mph (42.43 km/h) |
| 30 mph (48.28 km/h) | 31.64 mph (50.91 km/h) |
| 35 mph (56.33 km/h) | 36.91 mph (59.4 km/h) |
| 40 mph (64.37 km/h) | 42.18 mph (67.88 km/h) |
| 45 mph (72.42 km/h) | 47.45 mph (76.37 km/h) |
| 50 mph (80.47 km/h) | 52.73 mph (84.86 km/h) |
| 55 mph (88.51 km/h) | 58 mph (93.34 km/h) |
| 60 mph (96.56 km/h) | 63.27 mph (101.83 km/h) |
| 65 mph (104.61 km/h) | 68.54 mph (110.31 km/h) |
| 70 mph (112.65 km/h) | 73.82 mph (118.8 km/h) |
| 75 mph (120.7 km/h) | 79.09 mph (127.28 km/h) |
| 80 mph (128.75 km/h) | 84.36 mph (135.77 km/h) |
| 85 mph (136.79 km/h) | 89.64 mph (144.25 km/h) |
| 90 mph (144.84 km/h) | 94.91 mph (152.74 km/h) |
| 95 mph (152.89 km/h) | 100.18 mph (161.23 km/h) |
| 100 mph (160.93 km/h) | 105.45 mph (169.71 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1899 | 2206 | 2376 | 2481 | 2594 | 2675 | 2764 | 2869 | 3014 | 3160 | 3321 | 3450 | 3685 | 3943 | 4145 | 4275 | 4347 | 4614 | 4986 | 5794 |
Better Fuel Economy Factory Ratios Increased Power
