MTB/ ROAD BIKE/ TREKKING
psi 30 40 50 60 70 80 90 100 110 120 130 140
bar 2,1 2,8 3,5 4,1 4,8 5,5 6,2 6,9 7,6 8,3 9,0 9,7
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 either in the instruc
tions for used or you can have your dealer
demonstrate this.
- If pressure is too low: Increase the pressure
by inating with a suitable pump.
- If pressure is too high: Release sucient air
via the valve and check the pressure again
afterwards with a gauge.
2. Checking 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. Checking the t of your tyres:
•
Lift the front or rear road wheel and turn it
by hand
•
The tyre must be round when running.
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 reectors etc.
If loose parts are available:
•
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
reectors, for example. If you nd this is not
possible contact your dealer immediately.
•
Please note that all reectors are present
as per StVZO (see Chapter 2.1.4), correctly
secured and not obscured or dirty.
Many tyre pressures are given in „psi“. Convert the pressure using the following table.
Using a bicycle pump with a pressure
gauge you can check the pressure whils
inating the tyre.
Let some air out of the tyre rst and then
increase the pressure to the desired level.
There are various types of valve. All
valves can be tted with a dust cap.
After removing the cap you can place the
pump head directly on the valve in the
case of either a Schrader valve or the so-
called Presta valve. On a racing bike valve
you must rst screw the little locking
screw out of the valve until the stop and
tighten it again after inating the tyre.
•
Get your dealer to demonstrate operation of
the valves to you.
•