Operation Manual
Flat tyres are the most common cause of puncture during cycling. However,
as long as you have the necessary tools for changing tyres and inner 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 .
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 your
bicycle dealer!
Open the release lever of the brake (Shimano, SRAM) or shift the bolt
in the gear/brake lever at the handlebar (Campagnolo). If your bicycle has
derailleur gears, shift to the smallest sprocket. This shifts the rear derailleur
right to the outside where it does not interfere with the removal of the wheel.
If your bicycle has (cantilever or V-brakes) you first have to un-
hook 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 position 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 from Magura, unlock its quick-
release on one side of the brake and take it off the mounting bolt.
If your bicycle has and , loosen
the torque arm supporting the drive and braking force on the frame. Further-
more, you need to disconnect the shifting cables and the clickbox respec-
tively before removing the wheel.
If you have (hydraulic and mechanical), you should first check
the exact position and condition of the brake pads and/or wear indicators
(ear or nose-shaped metal protrusions) . In this way you will be able to tell
after 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.
a
b
c
d
Rotors can become hot, so let them cool down before remov-
ing 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. This shifts the rear derailleur right
to the outside where it does not interfere with the removal of the wheel.
Open the quick-release, as described in chapter
If you cannot remove the wheel after releasing the lever, this is due to the
drop-out safety tabs. They come as metal catches which engage with re-
cesses in the drop outs. Just release the quick-release adjusting nut a little
and slip the wheel past the tabs.
You will find it easier to remove the rear wheel, when you pull the rear derail-
leur slightly backwards . Lift the bicycle off the ground and give the wheel
a gentle tap with your hand so that it drops out.
If you have a bicycle with thru axles, please read chapter
.
In case you are in doubt about how to handle thru axles, please contact
your bicycle dealer.
In the case of combined derailleur and internal gear hubs the clickbox must
also be removed first before you can dismount the rear wheel, as is the case
with typical derailleur gear rear wheels.
Remove the cap and the fastening nut off the valve and deflate the tyre
completely . Press the tyre from the sides towards the centre of the rim.
You will find it easier to remove the tyre, if you do this around its entire cir-
cumference.
Apply a plastic tyre lever to one bead of the tyre about 5 cm beside the valve
and lever the tyre out of the rim in this area . Hold the tyre lever tight in
its position. Slip the second tyre lever between rim and tyre at a distance of
about ten centimetres on the other side of the valve and lever the next por-
tion of the bead over the edge of the rim.
After levering a part of the tyre bead over the edge of the rim you should
normally be able to slip off the whole tyre on one side by moving the tyre lever
around the whole circumference. Now you can remove the inner tube . See
to it that the valve does not get caught, as this can damage the inner tube.
If necessary you can remove the whole tyre by pulling the other tyre bead
off the rim. Repair the puncture according to the instructions of the repair kit
manufacturer or replace the inner tube by a new one.
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b
c
d