Check Tyres; Other Checks - Cube MTB Bedienungsanleitung

MTB/ Road Bike/ TRekking
28 |
7.1.3

Check tyres

Risk of Personal injury and Material
damage!
does not apply to tubeless tyres.
if the valve is angled, the base of the
valve can rip off when riding which causes
sudden loss of tyre pressure.
This can lead to dangerous riding con-
ditions, falling, accidents and material
damage.
•
Have the tyre seating corrected by a specia-
list workshop.
You can undertake this job yourself if you are
familiar with fitting and removing the road
wheels (see Chapter 11.1) and replacing the
tyre and tube.
•
Remove the valve nut.
•
Check the valve position:
The valves must point directly towards the
centre axis of the road wheel.
The valves must point directly towards the centre
axis of the road wheel.
The valve does not point to the traversing wheel
centre
Check the tyre pressure:
1. determine your tyre type
Mountain bikes can be fitted with racing bike type
tyres and racing bikes with trekking tyres.
Rule of thumb:
Mountain bike tyres: Tyre width greater
than 40 mm Trekking / cross-country and
fitness bike tires: Tyre width from
28 mm – 40 mm Racing bike style tyres:
Tyre width less than 28 m Consult your
dealer to determine your tyre type.
Pressures:
• Mountain bike tyres: 2.5 – 3.5 bar
• Trekking and city bike tyres: 3.5 - 5.0 bar
• Racing bike tyre: 6.0 - 10.0 bar
• For the correct air pressure for categories
not listed here, please refer to the infor
mation on the tire or consult your dealer.
Risk of Personal injury and Material
damage!
Too low a tyre pressure leads to increa-
sed likelihood of punctures but mostly
dangerous handling.
The tyre can come off the rim on bends
and cause the tyre to become detached
from the rim.
This can lead to dangerous riding con-
ditions, falling, accidents and material
damage.
•
Inflate your tyres to the correct pressure.
Many tyre pressures are given in "psi". Convert the pressure using the following table.
psi 30 40 50 60 70 80 90
bar 2.1 2.8 3.5 4.1 4.8 5.5 6.2
The actual permissible tyre pressure can be
found in the tyre and rim manufacturer's
instructions. The permissible tyre pressure is
mostly embossed on the tyre wall. Please
consult your dealer.
The higher your body weight, the higher
the tyre pressure needs to be.
Check the tyre pressure with a tyre pressure
gauge. Simple gauges are often included with
bicycle tubes and higher quality gauges are
available from your dealer.
How to use them is detailed either in the
instructions for use or you can have your
dealer demonstrate this.
- If pressure is too low: Increase the pressure
by inflating with a suitable pump.
- If pressure is too high: Release sufficient air
via the valve and check the pressure again
afterwards with a gauge.
using a bicycle pump with a pressure
gauge, you can check the pressure whilst
inflating the tyre.
Let some air out of the tyre first and then
increase the pressure to the desired level.
There are various types of valve. all
valves can be fitted with a dust cap.
after removing the cap, you can place the
pump head directly on the valve in either
a Schrader (auto) valve or what is known
as a express valve (dunlop). in the case of
a Sclaverand (French) valve, you first have
to loosen the small lock nut on the valve
as far as it will go, then tighten it again
completely after inflating the tyre.
•
Get your dealer to demonstrate operation of
the valves to you.
MTB/ Road Bike/ TRekking
100 110 120 130 140
6.9 7.6 8.3 9.0 9.7
2. Check your tyres for external damage and
wear:
•
The tyre rubber must have the same pattern
as the original over its entire surface.
•
The tyre canvas beneath the layer of rubber
must not be visible.
•
There must be no bulges or tears.
3. Check the fit of your tyres:
•
Lift the front or rear road wheel and turn it
by hand.
•
The tyre must rotate through 360 degrees.
There must be no highs or lows.

7.1.4 other checks

1. Check your road wheels for loose items
such as, for example, pieces of branches,
residues, loose spoke reflectors etc.
if there are loose parts:
•
Remove these if this is possible without
applying any great force.
•
Check if your road wheels have been dama-
ged by these loose items.
•
Tighten loose bicycle parts such as spoke
reflectors, for example. If you find this is not
possible, contact your dealer immediately.
•
Please note that all reflectors are present in
accordance with StVZO (see Chapter 2.1.4),
correctly secured and not obscured or dirty.
| 29