Accepts P-Metric and Inches
200/50-18 | 180/55-18 | Difference | |
---|---|---|---|
Diameter inches (mm) | 25.87 (657.2) | 25.8 (655.2) | -0.08 (-2) -0.3% |
Width inches (mm) | 7.87 (200) | 7.09 (180) | -0.79 (-20) -10% |
Circum. inches (mm) | 81.29 (2064.65) | 81.04 (2058.37) | -0.25 (-6.28) -0.3% |
Sidewall Height inches (mm) | 3.94 (100) | 3.9 (99) | -0.04 (-1) -1% |
Revolutions per mile (km) | 779.47 (484.34) | 781.85 (485.82) | 2.38 (1.48) 0.3% |
Speedometer Difference
Speedo Reading | Actual Speed |
---|---|
20 mph (32.19 km/h) | 19.94 mph (32.09 km/h) |
25 mph (40.23 km/h) | 24.92 mph (40.11 km/h) |
30 mph (48.28 km/h) | 29.91 mph (48.13 km/h) |
35 mph (56.33 km/h) | 34.89 mph (56.16 km/h) |
40 mph (64.37 km/h) | 39.88 mph (64.18 km/h) |
45 mph (72.42 km/h) | 44.86 mph (72.2 km/h) |
50 mph (80.47 km/h) | 49.85 mph (80.22 km/h) |
55 mph (88.51 km/h) | 54.83 mph (88.24 km/h) |
60 mph (96.56 km/h) | 59.82 mph (96.27 km/h) |
65 mph (104.61 km/h) | 64.8 mph (104.29 km/h) |
70 mph (112.65 km/h) | 69.79 mph (112.31 km/h) |
75 mph (120.7 km/h) | 74.77 mph (120.33 km/h) |
80 mph (128.75 km/h) | 79.76 mph (128.36 km/h) |
85 mph (136.79 km/h) | 84.74 mph (136.38 km/h) |
90 mph (144.84 km/h) | 89.73 mph (144.4 km/h) |
95 mph (152.89 km/h) | 94.71 mph (152.42 km/h) |
100 mph (160.93 km/h) | 99.7 mph (160.44 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1990 | 2311 | 2489 | 2599 | 2718 | 2802 | 2896 | 3006 | 3158 | 3310 | 3480 | 3615 | 3861 | 4132 | 4343 | 4479 | 4555 | 4834 | 5224 | 6071 |
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