Operation Manual

p. 14
WARNING: Do not remove or disable the secondary retention device. As its name implies, it serves as a
back-up for a critical adjustment. If the wheel is not secured correctly, the secondary retention device can
reduce the risk of the wheel disengaging from the fork. Removing or disabling the secondary retention device
may also void the warranty.
Secondary retention devices are not a substitute for correctly securing your wheel. Failure to properly secure
the wheel can cause the wheel to wobble or disengage, which could cause you to lose control and fall, resul-
ting in serious injury or death.
2. Wheels with cam action systems
There are currently two types of over-center cam wheel retention mechanisms: the traditional over-center
cam (fig. 8a) and the cam-and-cup system (fig. 8b). Both use an over-center cam action to clamp the bike’s
wheel in place. Your bicycle may have a cam-and-cup front wheel retention system and a traditional rear
wheel cam action system.
a. Adjusting the traditional cam action mechanism (fig. 8a)
The wheel hub is clamped in place by the force of the over-center cam pushing against one dropout and
pulling the tension adjusting nut, by way of the skewer, against the other dropout. 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 clamping force and unsafe clamping force.
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 the 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 your
dealer. Ask your dealer 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 dealer 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 rear 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.