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Tech
cont'd
WARNING
: The full force of the cam action is needed to clamp the wheel 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 a cam action wheel safely
in the dropouts. See also first WARNING in this section.
B. Adjusting the Cam-and Cup Mechanism (fig. 8b)
The cam-and-cup system on your front wheel will have been correctly adjusted for your
bicycle by the manufacturer. Ask a certified bike mechanic to check the adjustment every six
months. Do not use a cam-and-cup front wheel on any bicycle other than the one for which your
manufacturer adjusted it.
3. Removing and Installing Wheels
WARNING
: If your bike is equipped with a hub brake such as a rear coaster brake,
front or rear drum, band or roller brake; or if it has an internal gear hub, do not
attempt to remove the wheel. The removal and re-installation of most hub brakes and
internal gear hubs requires special knowledge. Incorrect removal or assembly can result
in brake or gear failure, which can cause you to lose control and fall.
CAUTION: If your bike has a disc brake, exercise care in touching the rotor or
caliper. Disc rotors have sharp edges, and both rotor and caliper can get very hot during
use
A. Removing a Disc Brake or Rim Brake Front Wheel
1. If your bike has rim brakes, disengage the brakes quick-release mechanism to
increase the clearance between the tire and the brake pads (fig. 11-15).
2. If your bike has a cam action front wheel retention, move the cam lever from
the locked or CLOSED position to the OPEN position (fig. 8a &b). If your bike
has through bolt or bolt-on front wheel retention, loosen the fastener (s) a few
turns counter-clockwise using an appropriate wrench, lock key or the integral
lever.
3. If your front fork has a clip-on type secondary retention device, disengage it
and go to step 4. If your front fork has an integral secondary retention device,
and a traditional cam action system (fig. 8a) loosen the tension adjusting nut
enough to allow removing the wheel from the dropouts. If your front wheel
uses a cam-and-cup system (fig. 8b), squeeze the cup and cam lever together
while removing the wheel. No rotation of any part is necessary with the
cam-and-cup system.
You may need to tap the top of the wheel with the palm of your hand to release
the wheel from the front fork.
B. Installing a Disc Brake or Rim Brake Front Wheel
CAUTION
: If your bike is equipped with a front disc brake, be careful not to damage
the disc, caliper or brake pads when re-inserting the disc into the caliper. Never
activate a disc brake's control lever unless the disc is correctly inserted in the caliper.
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