Brakes - Giant momentum Anleitung

NOTE: If, on a traditional cam action system, the lever cannot be pushed all the way to a position parallel to the
seat stay or chain stay, return the lever to the OPEN position. Then turn the tension adjusting nut
counterclockwise one-quarter turn and try tightening the lever again.
WARNING: Securely clamping the wheel with a cam action retention device takes considerable force.
If you can fully close the cam lever without wrapping your fingers around the seat stay or chain stay for
leverage, the lever does not leave a clear imprint in the palm of your hand, and the serrations on the
wheel fastener do not emboss the surfaces of the dropouts, the tension is insufficient. Open the lever;
turn the tension adjusting nut clockwise a quarter turn; then try again. See also the first WARNING in
this Section, p. 15.
(8) If you disengaged the brake quick-release mechanism in 3. c. (2) above, re-engage it to restore correct
brake pad-to-rim clearance.
(9) Spin the wheel to make sure that it is centered in the frame and clears the brake pads; then squeeze the
brake lever and make sure that the brakes are operating correctly.
B. Seat post cam action clam
Some bikes are equipped with a cam action seat post binder. The seat post cam action binder works exactly
like the traditional wheel cam action fastener (Section 4.A.2) While a cam action binder looks like a long bolt
with a lever on one end and a nut on the other, the binder uses an over-center cam action to firmly clamp the
seatpost (see fig. 8).
WARNING: Riding with an improperly tightened seat post can allow the saddle to turn or move and
cause you to lose control and fall. Therefore:
1. Ask your dealer to help you make sure you know how to correctly clamp your seat post.
2. Understand and apply the correct technique for clamping your seat post.
3. Before you ride the bike, first check that the seat post is securely clamped.
Adjusting the seat post cam action mechanism
The action of the cam squeezes the seat collar around the seat post to hold the seat post securely in place.
The amount of clamping force is controlled by the tension adjusting nut. Turning the tension adjusting nut
clockwise while keeping the cam lever from rotating increases clamping force; turning it counterclockwise while
keeping the cam lever from rotating reduces clamping force. Less than half a turn of the tension adjusting nut
can make the difference between safe and unsafe clamping force.
WARNING: The full force of the cam action is needed to clamp the seat post securely. Holding the nut
with one hand and turning the lever like a wing nut with the other hand until everything is as tight as you
can get it will not clamp the seat post safely.
WARNING: If you can fully close the cam lever without wrapping your fingers around the seat post or
a frame tube for leverage, and the lever does not leave a clear imprint in the palm of your hand, the
tension is insufficient. Open the lever; turn the tension adjusting nut clockwise a quarter turn; then try
again.
C. Brakes
There are three general types of bicycle brakes: rim brakes, which operate by squeezing the wheel rim
between two brake pads; disc brakes, which operate by squeezing a hub-mounted disc between two brake pads;
and internal hub brakes. All three can be operated by way of a handlebar mounted lever. On some models of
bicycle, the internal hub brake is operated by pedaling backwards. This is called a Coaster Brake and is
described in Appendix C.s
WARNING:
1. Riding with improperly adjusted brakes, worn brake pads, or wheels on which the rim wear
mark is visible is dangerous and can result in serious injury or death.
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