Step 4: Install the Backrest Cushion and Backrest Support
Required parts:
1. Align the Backrest Support (#7) with the two holes on the Seat Post (#3). Use Carriage
Bolts (#26), Flat Washer (#24), and Screw M8 (#25) to secure it, and then tighten with the
Multifunctional Wrench S13~15 (#34).
2. Align the Backrest Cushion (#11) with the four holes on the Backrest Support (#7). Use
the Half Round Head Inner Hexagon Bolts (#27) to secure it, and then tighten with the
Socket Head Screw Wrench S5 (#33).
1 Backrest Cushion (#11) 1 Backrest Support (#7)
2 Carriage Bolts (#26) 2 Flat Washers (#24)
2 Screws M8 (#25) 4 Half Round Head Inner Hexagon Bolts (#27)
1 Socket Head Screw Wrench S5 (#33) 1 Multifunctional Wrench S13~15 (#34)