Ask your dealer to instruct you in correct wheel removal and installation, and ask him to give you any available
manufacturer’s instructions.
WARNING: Riding with an improperly secured wheel can allow th
e wheel to wobble or fall off the bicycle, which
k your wheels safely.
dropouts.
ondary wheel retention device to reduce the risk of the wheel disengaging
from
ondary retention devices fall into two basic categories:
the front wheel hub or front fork.
.
s name implies, it serves as a back-up
ms
enter cam wheel retention mechanisms: the traditional over-center cam (fig. 8a) and
the
r cam pushing against one dropout and pulling the tension
adju
can cause serious injury or death. Therefore, it is essential that you:
you
r dealer to help you make sure you know how to install and remove1. As
2. Understand and apply the correct technique for clamping your wheel in place.
3. Each time, before you ride the bike, check that the wheel is securely clamped.
The clamping action of a correctly secured wheel mu
st emb
oss the surfaces of the
1. Front Wheel Secondary Retention Devices
Most bicycles have front forks which utilize a sec
the fork if the wheel is incorrectly secured. Secondary retention devices are not a substitute for correctly securing your front
wheel.
Sec
a. The clip-on type is a part which the manufacturer adds to
b. T
he integral type is molded, cast or machined into the outer faces of the front fork dropo
uts
Ask your dealer to explain the particular secondary retention device on your bike.
WARNING: Do not remove or disable the secondary retention device.
As it
for a critical adjustment. If the wheel is not secured correctly, the secondary retention dev
ice can reduce the risk
wheel disengaging f rom the fork . Re moving or dis abling t he s econdary retention dev ice may a lso v oid the
warranty. Se condary re tention devices are not a s ubstitute for c orrectly s ecuring y our wheel. Failure to prope rly
secure th e wheel can cau se th e wheel to wobble or d isengage, which cou ld cause you to loo se co ntrol an d fall,
resulting in serious injury or death.
2. Wheels with cam action syste
of the
There are currently two types of over-c
cam-and- cup system (fig. 8b). Both use an over-center cam actio
n 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-cente
sting nut, b y way of the ske wer, aga inst the other dr opout.
The amount of clam
ping force is co ntrolled b y the tensio n
18
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