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16
ADJUSTING THE RIDING POSITION
HOW CAN I CHECK MY SEATING POSITION?
A good riding position is important for your
comfort and for optimal performance on the
bike. You need to adjust saddle and handle-
bars very precisely to ensure the best possi-
ble fit. Several components on the Birdy are
designed to adjust to suit your body dimen-
sions. If required, you dealer will be pleased
to change the stem on your Birdy.
ADJUSTING FOR THE CORRECT SADDLE HEIGHT
The need for a comfortable pedaling action
determines the saddle height. It’s important
that when you pedal, the ball of the foot
should be over the center of the pedal axle.
When the pedal is at its lowest position your
leg should not be quite fully extended. If
the saddle is too high, it’s hard to get round
this lowest point, and the pedaling action
becomes uneven. If the saddle is too low,
you’re likely to experience knee pain.
Check the seat height using the following
simple procedure. Use shoes with a flat sole
for this check:
Sit on the saddle and put your heel on the
pedal, so that it moves to its lowest posi-
tion. In this position the leg should be fully
extended. Note that the hips should stay
straight and level.
To adjust the seat height, you need to undo
the quick-release.
The loosened seatpost can now be adjust-
ed for height. Make sure that the seatpost
is not greased. If it doesn’t slide smoothly in
the frame, clean out and remove all grease
from inside the frame and on the seatpost.
If you have further problems, consult your
dealer. It should never require extreme
force to adjust the seatpost.
Set the saddle straight, by lining up the
saddle nose either with the bottom bracket
or the main frame tube. Close the quick
release.
Check that the seatpost is securely xed
by grasping the front and rear of the sad-
dle and attempting to twist it. If it doesn’t
move at all, it’s secure.
Does the leg extension seem correct when
you repeat the test? Check it by moving
your foot to the ideal pedaling position,
with the ball of the foot above the pedal
axle. The knee should now be slightly bent
All of the procedures we are about
to describe require a certain
de-gree of skill, suitable tools and
mechanical aptitude. After any as-
sembly or maintenance procedure,
perform the Quick Check (see page
8) and take a short test-ride some-
where quiet, away from trac.
This lets you check in safety that
everything works properly. If you
have any doubts, it’s best just to do
the riding position check, and then
to explain any changes you’d like
to your dealer. They can carry out
your requests with all the proper
tools and skills, perhaps in con-
junction with the rst inspection.
DANGER!
18


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