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1. A hollow axle with a shaft skewer running through it which has
an adjustable tension nut on one end and an over-center cam
on the other (cam action system, Figure 4.1)
2. A hollow axle with a shaft skewer running through it which has
a nut on one end and a fitting for a hex key, lock lever or other
tightening device on the other (through bolt, Figure 4.2)
3. Hex nuts or hex key bolts which are threaded on to or into the
hub axle (bolt-on wheel)
It is very important that you understand the type of wheel
securing method on your bicycle, that you know how to secure
the wheels correctly, and that you know how to apply the correct
clamping force that safely secures the wheel. Contact customer
service 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 the wheel
to wobble or fall off the bicycle, which can cause serious injury
or death.
Therefore, it is essential that you:
1. Understand and apply the correct technique for clamping your
wheel in place.
2. Each time, before you ride the bike, check that the wheel is
securely clamped.
The clamping action of a correctly secured wheel must emboss
the surfaces of the dropouts.
Axle
Hybrid 5
Fork dropout
Axle
washer
Axle nut
Figure 4.2
37
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