Whyte 905 Instruction Manual page 16

WARNING: Do not remove or disable the secondary retention
device. 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 fork 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 loose control and fall,
resulting in serious injury or death.
Wheels with over-centre cam action systems.
An over-centre cam action clamps the bike's wheel in
place. The cam can be seen to move from open to closed
in Figures 12, 13 & 11 (in that order).
Adjusting the
mechanism.
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.
Removing and Installing wheels
WARNING: If your bike is equipped with a hub brake or
internal gear rear hub, do not attempt to remove the wheel.
The removal and re-installation of these parts requires special
knowledge. Consult your Whyte dealer. 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
Page 16
over-centre cam action
fig. 11
fig. 12
General Instruction Manual