CITY MODEL 1 • VERSION 1
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 loose control and fall, resulting 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 10.A) and the cam-and-cup system (FIG 10.B).
Both use an over-center cam action to clamp the Ebikes wheel in place. Your Ebike 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 10.A)
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 4.A.
b. Adjusting the cam-and-cup mechanism (FIG 10.B)
The cam-and-cup system on your front wheel will have been correctly adjusted for your Ebike
by your dealer. Please contact
BIKE.com
at
or call at
1-(877)-755-2453(BIKE)
or ask
your dealer for all service to check the adjustment every six months.
Do not use a cam-and-cup front wheel on any Ebike other than the one for which your
dealer adjusted it.
