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Adjusting OSATA: Handlebars
Fig. 22 Loosen upper stem riser.
Upper Stem
Riser Bolt
Lower Stem
Riser Bolt
Locking
Headset
Spacer
Adjusting Handlebar Height.
Loosen the upper stem riser
bolt, adjust the height as
needed and re-tighten. If you
are having difficulty adjusting
the height with the upper stem
riser bolt loose, you may find
that also loosening the lower
stem bolt will make it easier to
change the height. Just remem-
ber to tighten both bolts when
done.
DO NOT LOOSEN THE
LOCKING HEADSET SPACER.
NOTE: There is a “minimum insertion” mark etched about
4” from the bottom of the stem riser, this is the amount
of material that must be inserted for safe use.
Quill Stem Adjustments
NOTE: For customers that have a “quill” style stem, you
have an extra set of height adjustments with the quill stem.
To loosen the quill stem, loosen the main bolt.
You are likely going to have to “un-wedge” the internal
wedge in the quill stem. This can be done in one of two ways:
• Stand in front of the bike, with your legs surrounding the
front wheel to prevent it from turning, turn the handle-
bars, you should feel it all of a sudden give and now the
bars will turn independent of the wheel.
• Unscrew the bolt that runs in the center of the stem
(toward the fork). Continue until the head of the bolt
sticks up a bit and with a mallet (or a hammer and a piece
of wood to prevent any deformation of the bolt head),
strike the bolt head in a downward motion toward the
fork. This will unseat the wedge allowing you to adjust or
remove the stem.
Fig. 23 Quill Stem adjustment.
Fig. 24 Quill Stem unwedge.
Adjusting OSATA: Main Frame
Adjusting the Main Frame Sizing
Adjusting the main frame size can be done by one person but
is easier with two. If you are encountering any resistance
depressing the button, getting the button to pop back out or
telescoping the frame in and out, wiggling the two sections
(up and down or a rotating motion) will make your life much
easier.
Your OSATA should have come with grease in this area, over
time you might need to re-apply some to make the sizing
task easier. Embrace the grease.
One Person “Archer” Technique
(archer because the hand
position resembles an archer’s stance)
Fig. 25 Main Frame Pinch Bolts.
Make Frame Larger
• Loosen the two Main Frame
pinch bolts that secure the
clamps on the telescoping
main frame.
• Depress the spring loaded
button, move the male
and female portion of the
frame side by side slightly
so that the button remains
depressed so you can con-
tinue with the adjustment.
Mechanic’s Tip: Wiggle it a
bit if you are encountering
resistance. Alternatively, if
you are encountering resis-
tance, putting your hand on
the bottom of the rear sec-
tion where the binder bolts
are, pushing up a bit will free
up the binding sensation you
are feeling (creating up and
down movement between the
front and rear sections). The
Two-Person technique can be
easier.
Fig. 26 Archer Position.
Main Frame
Pinch Bolts
Spring Loaded
Button
Fig. 27 Wiggle.
