WARNING: On some bicycles, changing the stem or stem height
can affect the tension of the front brake cable, locking the front
brake or creating excess cable slack which can make the front brake
inoperable. If the front brake pads move in towards the wheel rim or
out away from the wheel rim when the stem or stem height is changed,
the brakes must be correctly adjusted before you ride the bicycle.
Some bicycles are equipped with an adjustable angle stem. If your bicycle
has an adjustable angle stem, ask your dealer to show you how to adjust if. Do
not attempt to make the adjustment yourself, as changing stem angle may also
require adjustments to the bicycle's controls.
WARNING: Always tighten fasteners to the correct torque. Bolts
that are too tight can stretch and deform. Bolts that are too loose
can move and fatigue. Either mistake can lead to a sudden failure
of the bolt, causing you to lose control and fall.
Your dealer can also change the angle of the handlebar or bar end extensions.
WARNING: An insufficiently tightened stem clamp bolt, handlebar clamp
bolt or bar end extension clamping bolt may compromise steering action,
which could cause you to lose control and fall. Place the front wheel of
the bicycle between your legs and attempt to twist the handlebar/stem
assembly. If you can twist the stem in relation to the front wheel, turn
the handlebars in relation to the stem, or turn the bar end extensions in
relation to the handlebar, the bolts are insufficiently tightened.
WARNING: During use of aero extensions you will have less
control over the bicycle. You will have a diminished ability to steer.
You will also need to reset your hands to operate the brakes, which
means your response to braking will take longer.
The angle of the brake and shift control levers and their position on the
handlebars can be changed. Ask your dealer to make the adjustments for you.
If you choose to make your own control lever angle adjustment, be sure to re-
tighten the clamp fasteners to the recommended torque (Appendix D or the
manufacturer's instructions).
Many bikes have brake levers which can be adjusted for reach. If you have
small hands or find it difficult to squeeze the brake levers, your dealer can either
adjust the reach or fit shorter reach brake levers.
WARNING: The shorter the brake lever reach, the more critical
it is to have correctly adjusted brakes, so that full braking power
can be applied within available brake lever travel. Brake lever
travel insufficient to apply full braking power can result in loss of
control, which may result in serious injury or death.
D. Control position adjustments
E. Brake reach
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