7. How to use the quick-releases
Close the lever again and check the position
for tightness. If the lever can no longer be
turned, it is properly fastened.
Finally, lift the bike up a few centimetres, so
that the wheel no longer touches the ground,
and hit the tire from above. If the quick-release
is properly fastened, the wheel will remain
firmly fixed in the drop-outs of the frame.
If your seat post is equipped with a quick-
release retention mechanism, check whether
the saddle is firmly fixed by trying to twist it
relative to the frame.
Improperly closed quick-releases can
cause parts to come loose. This can
result in an accident with severe injuries.
If you close a quick-release, do not
pull the lever with your fingers propped
up against a brake disc or a spoke.