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how to uSe Quick-releaSeS
Most city/trekking bikes are fitted with quick-releases to ensure fast
adjustments, assembly and disassembly. Be sure to check that all the
quick-releases are tight before you set off on your WHEELER bicycle.
Quick-releases should be handled with the greatest care, as they di-
rectly affect your safety.
Practise the proper use of quick-releases to avoid any accidents.
Quick-release mechanisms essentially consist of two operative ele-
a
ments:
1. The hand lever on one side of the hub which creates a clamping
2. The tightening nut on the other side of the hub with which the initial
G
b
G
G
c
A
d
26
force via a cam when you close it (a).
tension on the threaded rod (quick-release axle) is set (b).
Make sure that the levers of both wheel quick-releases are
always on the side opposite the chain drive (c). This will
help you to avoid accidentally mounting the front wheel the
wrong way round. In the case of bicycles with disc brakes
and quick-releases having a 5-mm-axle, it may be reason-
able to mount both quick-releases with the lever on the side
of the chain drive. This would help you not to come into con-
tact with the rotor and prevent you from having your fingers
burnt. If you are in doubt or if you have any questions, then
contact your WHEELER bicycle dealer.
never ride your WHEELER bicycle without having checked
first whether the wheels are securely fastened (d). danger
of an accident!
Do not touch the rotor directly after having stopped – you
may burn your fingers! Always let the rotor cool down be-
fore opening the quick-release!
If your WHEELER bicycle is equipped with quick-releases,
be sure to lock the wheels together with the frame to an
immovable object when you leave the bicycle outside.
How to Fasten Components Securely with a Quick-Release
Open the quick-release. The marking "open" on the lever should be-
come visible now (e).
Make sure the component to be fastened is in the correct position.
You can find further information in the chapters "wheels and tyre
equipment" and "adjusting the wheeler bicycle to the rider"
and in the instructions from the parts manufacturers, which you can
find on the enclosed CD.
Move the lever back, as if to close it. Now you should be able to read
"Close" on the outside of the lever (f). When you start closing the lever
you should feel virtually no resistance with your hand until half way (g).
Over the second half of its travel the resistance you feel should increase
significantly. Towards the end of its travel you should need very much
strength to close the lever. Use the ball of your thumb to push it in all
the way while your fingers pull on an immovable part, such as the fork
(h)
or the rear stay, but not on a brake rotor or spoke.
In its end position, the lever should be at right angles to the quick-
release axle, i.e. it should not stick out to the side. The lever should lie
close to the frame or the fork so that it cannot be opened accidentally.
Make sure, however, that the lever is easy to handle for actual quick
use.
To check whether the lever is securely locked, apply pressure to the end
of the lever and try to turn it while it is closed. If you can turn the lever
around, open it and increase the preload. Screw the tightening nut on
the opposite side clockwise by half a turn. Close the quick-release lever
and check it again for tightness.
e
f
f
g
h
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