15
ticularly high level of stress due to unevenness of the riding surface and the weight of the rider.
The wheels are carefully checked and trued prior to delivery. However, the spokes may settle
when you ride the first kilometer on your bike.
• Have the wheels checked again and trued if necessary after the first 100 kilometer by a
specialist cycle shop.
•
You should subsequently regularly check the tension in the spokes and have loose or dam-
aged spokes replaced, and/or have the wheel trued, by a specialist cycle shop.
•
The wheel can be attached to the frame and fork in a number of different ways. In addition
to the standard systems in which the wheel is held on by axle nuts or quick-release devices,
different types of floating axles exist. These can be held in place by a screw connection or
different types of quick-release devices. If your bike has a floating axle, please also refer to
the enclosed manufacturer’s user manual or visit the web pages of the relevant manufactur-
er in the Internet.
WARNING:
Tighten all screws to the prescribed torque as otherwise screws could shear o’ and com-
ponents could come loose or detach altogether.
IX-2.
Checking the hubs
To check the hub bearings, proceed as follows:
•
Lift the wheel and spin it.
•
Check whether the wheel continues to turn through several revolutions before it stops mov-
ing. If it stops suddenly, the bearing is damaged. This does not apply for front wheels with
hub dynamos.
•
To determine whether there is play in the hub bearing, try rocking the wheel in the bike fork
or rear triangle backwards and forwards perpendicular to the direction of travel.
•
If you notice friat there is play between the bearings or rf you encounter resistance when
turning the wheel, have the hub bearing adjusted by a specialist cycle shop.
IX-3.
Checking the rims
If you are using a rim brake, the rim is subject to a higher degree of wear.
WARNING:
If a rim is worn it loses stability which makes it more susceptible to damage. If the rim is
deformed, cracked or broken this can lead to serious accidents. If you notice changes
in a rim on your bike, do not ride on it. Have the problem checked by a professional bike
workshop.
IX-4.
Tyres
A large number of different tyre types exist. The bike’s off—road capability and rolling resistance
depend on tread profile.
WARNING:
Only inflate the tyre to the maximum permissible tyre pressure as otherwise it may burst. Inflate
the tyre at least to the specified minimum air pressure. If the tyre pressure is too low, the tyre
may detach from the rim.
The maximum permissible tyre pressure, and normally also the minimum permissible pressure,
can be found on the tyre sidewall.
