JOCCA 1554 Manual De Instrucciones página 11

EN
STEP 3.
-Attach the Seat (43) onto the Seat post (06), fasten with x 3
Flat washer (42) and x 3 Nut (41).
-Release the knob (31), and then Insert the Seat post (06) into
the Main Frame (01). Line up the holes and secure the seat in
position with the Spring knob (31). The correct height for the
seat can be adjusted after the bike is fully assembled.
11