Razor UB1 Owner's Manual page 7

ASSEMBLY AND SET-UP
Attaching the Seat
1
Open the quick-release lever.
Note: The tension of the quick-release lever can be
adjusted by manually tightening or loosening the Allen
bolt. Be careful not to over-tighten. You should always
be able to open and close the quick-release lever by hand
and the seat should slide freely when the quick-release
is open.
2
Insert the seat post. Adjust the seat to the desired
height and close the quick-release lever to lock
into place.
Note: The assembly and adjustment should not pass the
vertical safety lines (A).
5
WARNING: Failure to
properly secure the quick-release
lever may cause the seat to
A
telescope down while riding
and may cause you to lose control
and fall.