42
b
c
d
a
7.5 puncture.
Flat tyres are the most common cause of puncture during cycling.
However, as long as you have the necessary tools for changing tyres and
tubes and a spare tube or a repair kit, this need not mean the end of your
cycle ride. For bicycles with quick-releases all you need in addition are
two tyre levers and a pump
(a)
.
Be sure to read chapters
“Wheel mounting”
and
“How to Use
Quick-Releases and Thru Axles”
before wheel removal. If
you are in doubt or if you have any questions, please contact a
bicycle specialist shop of your trust!
7.5.1 Wheel Removal.
Step one with the brakes of mountain, cruise and touring bikes
If your bicycle has
rim brakes
(cantilever or V-brakes) you first have to
unhook the brake cable from the brake arm. To do this, grip the brake
with one hand and press the brake pads and arms together. In this posi-
tion it should be easy to disengage the usually barrel shaped nipple or, in
the case of V-brakes, the outer cable.
If your bicycle has
hydraulic rim brakes
(b)
from Magura, unlock its
quick-release on one side of the brake and take it off the mounting bolt.
If your bicycle has
drum or roller brakes
and
internal gear hubs
,
loosen the torque arm supporting the drive and braking force on the
frame. Furthermore, you need to disconnect the shifting cables and the
clickbox respectively before removing the wheel.
If you have
hydraulic disc brakes
, you should first check the exact
position and condition of the brake pads and/or wear indicators (ear or
nose-shaped metal protrusions)
(c)
. In this way you will be able to tell af-
ter the removal whether the brake pads are still in their correct position.
Read the brake manufacturer’s instructions!
Do not pull the (disc) brake lever with a removed wheel and
make sure to mount the safety locks when removing the wheel.
Rotors can become hot, so let them cool down before removing
a wheel.
Please read the operating instructions of the brake and the
gear manufacturer.
If you have derailleur gears, you should shift the chain to the smallest
sprocket before removing the rear wheel
(d)
. This shifts the rear derail-
leur right to the outside where it does not interfere with the removal of
the wheel.
