Operation Manual

102
15.4 Mudguards, luggage rack, lights
WARNING Danger from falls and accidents
Defects and faults in the luggage rack and lights can lead to dangerous riding situations, falls,
accidents and material damage.
• Contact your specialist bicycle dealer immediately if you notice the slightest malfunction.
• You should only use your bike again when it has been properly repaired by the specialist bicycle
dealer.
Problem Possible causes Remedy
Noises: Cracking, bang-
ing, grinding, etc.
Mudguard or luggage rack parts
loose
Contact an approved workshop
immediately.
Lights partially or com-
pletely without function
Light fi xtures (bulbs, LEDs)
burned out
Replace the bulb(s) Please
consult your dealer.
Cables damaged
Contact an approved workshop
immediately.
Dynamo defective
15.5 Wheels and tyres
WARNING
Danger from falls and accidents
Defects and faults in the wheels and tyres can lead to dangerous riding situations, falls, accidents
and material damage.
• Contact your specialist bicycle dealer immediately if you notice the slightest malfunction.
• You should only use your bicycle again when it has been properly repaired by the specialist bicycle
dealer.
Problem Possible causes Remedy
Wheels “jump” • Tyre damaged
• Spoke broken
Contact an approved workshop im-
mediately.
Damage to the wheel Contact an approved workshop im-
mediately.
“Spongy” riding behaviour Tyre pressure too low Increase the air pressure (see sec-
tion 7.1.2.7, Checking the air pres-
sure).
If the same riding behaviour occurs
again fairly shortly thereafter, the
tyre has a slow puncture (see next
line).
• Increasingly “spongy” rid-
ing behaviour
• Very unusual wheel rolling
behaviour (you feel every
small stone)
Flat tyre Flat tyre: replacement of the inner
tube, if necessary tyre and rim tape,
see section 15.5.1, Changing the
inner tube and tyre.