Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/65-15 | 225/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.03 (686.5) | 26.52 (673.5) | -0.51 (-13) -1.9% |
| Width inches (mm) | 9.25 (235) | 8.86 (225) | -0.39 (-10) -4.3% |
| Circum. inches (mm) | 84.91 (2156.7) | 83.3 (2115.86) | -1.61 (-40.84) -1.9% |
| Sidewall Height inches (mm) | 6.01 (152.75) | 5.76 (146.25) | -0.26 (-6.5) -4.3% |
| Revolutions per mile (km) | 746.21 (463.67) | 760.61 (472.62) | 14.4 (8.95) 1.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.62 mph (31.58 km/h) |
| 25 mph (40.23 km/h) | 24.53 mph (39.47 km/h) |
| 30 mph (48.28 km/h) | 29.43 mph (47.37 km/h) |
| 35 mph (56.33 km/h) | 34.34 mph (55.26 km/h) |
| 40 mph (64.37 km/h) | 39.24 mph (63.15 km/h) |
| 45 mph (72.42 km/h) | 44.15 mph (71.05 km/h) |
| 50 mph (80.47 km/h) | 49.05 mph (78.94 km/h) |
| 55 mph (88.51 km/h) | 53.96 mph (86.84 km/h) |
| 60 mph (96.56 km/h) | 58.86 mph (94.73 km/h) |
| 65 mph (104.61 km/h) | 63.77 mph (102.63 km/h) |
| 70 mph (112.65 km/h) | 68.67 mph (110.52 km/h) |
| 75 mph (120.7 km/h) | 73.58 mph (118.42 km/h) |
| 80 mph (128.75 km/h) | 78.49 mph (126.31 km/h) |
| 85 mph (136.79 km/h) | 83.39 mph (134.2 km/h) |
| 90 mph (144.84 km/h) | 88.3 mph (142.1 km/h) |
| 95 mph (152.89 km/h) | 93.2 mph (149.99 km/h) |
| 100 mph (160.93 km/h) | 98.11 mph (157.89 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1936 | 2249 | 2422 | 2529 | 2644 | 2726 | 2817 | 2924 | 3072 | 3221 | 3385 | 3517 | 3756 | 4019 | 4225 | 4357 | 4431 | 4703 | 5082 | 5906 |
Better Fuel Economy Factory Ratios Increased Power
