12
b
c
da
1.5 How to Use Quick-Releases and Thru
Axles.
1.5.1 Quick-Releases.
Your bicycle is tted with quick-releases to ensure fast adjustments,
assembly and disassembly. Be sure to check whether all quick-releases
are tight before you set off on your bicycle. Quick-releases should be
handled with great care, as they directly affect your safety.
Practise the use of quick-releases to avoid any accidents.
Quick-release mechanisms essentially consist of two operative ele-
ments:
1. The hand lever on one side of the hub which creates a clamping force
via a cam when you close it (a).
2. The tightening nut on the other side of the hub with which the initial
tension on the threaded rod is set.
Make sure the levers of both quick-releases at the front and
rear wheel are always on the side opposite to the chain. This
will help you to avoid mounting the front wheel the wrong way
round. By contrast, with disc brakes the front quick-release is
usually mounted with its lever to the right.
Never ride a bicycle without having rst checked whether the
wheels are securely fastened! A wheel that comes loose whilst
riding will throw you off your bicycle!
If your bicycle is equipped with quick-releases, be sure to lock
the frame to an immovable object together with the wheels
when you leave it outside.
How to Fasten Components Securely.
Open the quick-release. The marking “Open“ on the lever should be-
come visible now (b).
Do not touch the rotor directly after stopping – you may burn
your ngers! Always let the rotor cool down before opening the
quick-releases!
Move the lever back, as if to close it. Now you should be able to read
”Close“ on the outside of the lever. When you start closing the lever you
should feel virtually no resistance with your hand until the lever is at right
angle to the frame/fork.
Over the second half of its travel the resistance you feel should increase
signicantly. 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 ngers pull on an immovable part, such as the fork or the
rear stay (c), but not on a rotor or spoke.
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