Klarfit Myon Cycle Mode D'emploi page 48

EN
48
Step 5
A Attach the seat (49) onto the seat post (06), fasten it with 3 flat
washers (48) and 3 nuts (50).
B Loosen 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
knob (31). The correct height for the seat can be adjusted after the bike
is fully assembled.