Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 130/70-18 | 130/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.17 (639.2) | 24.65 (626.2) | -0.51 (-13) -2% |
| Width inches (mm) | 5.12 (130) | 5.12 (130) | 0 (0) 0% |
| Circum. inches (mm) | 79.06 (2008.11) | 77.45 (1967.27) | -1.61 (-40.84) -2% |
| Sidewall Height inches (mm) | 3.58 (91) | 3.33 (84.5) | -0.26 (-6.5) -7.1% |
| Revolutions per mile (km) | 801.42 (497.98) | 818.06 (508.32) | 16.64 (10.34) 2.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.59 mph (31.53 km/h) |
| 25 mph (40.23 km/h) | 24.49 mph (39.42 km/h) |
| 30 mph (48.28 km/h) | 29.39 mph (47.3 km/h) |
| 35 mph (56.33 km/h) | 34.29 mph (55.18 km/h) |
| 40 mph (64.37 km/h) | 39.19 mph (63.06 km/h) |
| 45 mph (72.42 km/h) | 44.08 mph (70.95 km/h) |
| 50 mph (80.47 km/h) | 48.98 mph (78.83 km/h) |
| 55 mph (88.51 km/h) | 53.88 mph (86.71 km/h) |
| 60 mph (96.56 km/h) | 58.78 mph (94.6 km/h) |
| 65 mph (104.61 km/h) | 63.68 mph (102.48 km/h) |
| 70 mph (112.65 km/h) | 68.58 mph (110.36 km/h) |
| 75 mph (120.7 km/h) | 73.47 mph (118.25 km/h) |
| 80 mph (128.75 km/h) | 78.37 mph (126.13 km/h) |
| 85 mph (136.79 km/h) | 83.27 mph (134.01 km/h) |
| 90 mph (144.84 km/h) | 88.17 mph (141.9 km/h) |
| 95 mph (152.89 km/h) | 93.07 mph (149.78 km/h) |
| 100 mph (160.93 km/h) | 97.97 mph (157.66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2082 | 2418 | 2604 | 2720 | 2844 | 2932 | 3030 | 3145 | 3304 | 3464 | 3641 | 3783 | 4040 | 4323 | 4545 | 4686 | 4766 | 5058 | 5466 | 6352 |
Better Fuel Economy Factory Ratios Increased Power
