Accepts P-Metric and Inches
90/90-21 | 110/90-19 | Difference | |
---|---|---|---|
Diameter inches (mm) | 27.38 (695.4) | 26.8 (680.6) | -0.58 (-14.8) -2.1% |
Width inches (mm) | 3.54 (90) | 4.33 (110) | 0.79 (20) 22.2% |
Circum. inches (mm) | 86.01 (2184.66) | 84.18 (2138.17) | -1.83 (-46.5) -2.1% |
Sidewall Height inches (mm) | 3.19 (81) | 3.9 (99) | 0.71 (18) 22.2% |
Revolutions per mile (km) | 736.66 (457.74) | 752.67 (467.69) | 16.02 (9.95) 2.2% |
Speedometer Difference
Speedo Reading | Actual Speed |
---|---|
20 mph (32.19 km/h) | 19.57 mph (31.5 km/h) |
25 mph (40.23 km/h) | 24.47 mph (39.38 km/h) |
30 mph (48.28 km/h) | 29.36 mph (47.25 km/h) |
35 mph (56.33 km/h) | 34.26 mph (55.13 km/h) |
40 mph (64.37 km/h) | 39.15 mph (63 km/h) |
45 mph (72.42 km/h) | 44.04 mph (70.88 km/h) |
50 mph (80.47 km/h) | 48.94 mph (78.75 km/h) |
55 mph (88.51 km/h) | 53.83 mph (86.63 km/h) |
60 mph (96.56 km/h) | 58.72 mph (94.51 km/h) |
65 mph (104.61 km/h) | 63.62 mph (102.38 km/h) |
70 mph (112.65 km/h) | 68.51 mph (110.26 km/h) |
75 mph (120.7 km/h) | 73.4 mph (118.13 km/h) |
80 mph (128.75 km/h) | 78.3 mph (126.01 km/h) |
85 mph (136.79 km/h) | 83.19 mph (133.88 km/h) |
90 mph (144.84 km/h) | 88.08 mph (141.76 km/h) |
95 mph (152.89 km/h) | 92.98 mph (149.63 km/h) |
100 mph (160.93 km/h) | 97.87 mph (157.51 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1915 | 2225 | 2396 | 2502 | 2616 | 2698 | 2788 | 2893 | 3040 | 3187 | 3350 | 3480 | 3717 | 3978 | 4181 | 4312 | 4385 | 4654 | 5029 | 5844 |
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