Assembly step 4
17
14
41
41
73
77
38
110
109
110
60
108
21 73 77
17
14
41
11L
4-1
4-2
74A
11L
x2
74B
41
x2
63
31
4
Assemble the left pedal bottom tube welding set (11L) to the main frame
(1) using the anti-loosen nut (17), flat washer (14), plastic flat washer (41),
circumvolve axle welding set (31), front pedal axle cover(74A), front pedal axle
cover(74B), screw (63).
Assemble the roll wheel (38) to the main frame (1) using the inner six angle bolt
(110), flat washer (60), spacer (108), roll wheel stop piece (109).