IDEAL Bikes PRISMA-810, Оригинальное руководство пользователя

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65
WHEELS
NOTE
Risk of damage!
Unsuitable tyres can affect or impair the proper functioning of pedelec
components.
»
Contact your specialist dealer if you have questions about tyre size or are unsure.
5
2
1
3
4
1
Valve
2
Spokes
3
Hub
4
Rim
5
Tyre
Fig. 16:
Wheels
The weight of the person riding and uneven cycling surfaces place stress on the wheels.
• After an initial riding period, contact your specialist dealer to have the wheels checked
and re-centred, if necessary, but no later than after:
-
the first 500 km distance travelled,
-
25 to 50 hours of use,
-
2 months, depending on which occurs first.
• Check the wheels every six months to ensure they are in a good condition:
-
The wheels should be free from damage and aligned correctly.
31.1 Rims and spokes
Correct and even tensioning of the rims stabilises the concentricity of the wheels. If the
wheel is not running true, the stability of the rim is affected and the rim can break as a result.
If a cyclist rides over an obstacle (e.g. a kerb) quickly or if a spoke nipple becomes loose, the
spokes may no longer be tensioned correctly.
31.2 Tyre types
Tyres and rims are not usually airtight, but contain an inner tube that is filled with air via the
valve. The only exceptions to this are tubular tyres and UST tyres, which are airtight systems
that do not contain an additional inner tube.
The tyre size (
mm
or II ) is usually specified on the side of the tyre.