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6.5.10 Tires
It is not possible to offer a general
recommended tire pressure for a particular ebike
or tire. The correct tire pressure largely depends
on the weight load on the tires, mainly
determined by body weight and baggage.
Unlike cars, the weight of the vehicle has only a
small impact on the total weight. Moreover, the
personal preferences for low rolling resistance or
a high degree of suspension comfort vary a great
deal. It is important to remember that
The higher the tire pressure is, the lower the wear,
•
rolling resistance and the risk of breakdown are.
The lower the pressure in the tire is, the greater
•
the comfort and grip that the tire offers is.
In the case of ebikes used on the road, the rule is
the greater the tire pressure is, the lower the tire
rolling resistance is. The risk of breakdown is
also lower when the pressure is high.
A permanently excessively low tire pressure
often leads to premature wear in the tire.
Cracking in the side wall is a typical consequence
of very low tire pressure. Abrasion is also
unnecessarily high.
On the other hand, a tire can absorb road impacts
more effectively at a low pressure.
As a general rule, wide tires are operated at a
lower tire pressure. They provide the
advantages of the lower tire pressure without the
serious disadvantages of wear, rolling
resistance and flat protection.
Never exceed or go below the minimum and
maximum pressure limits indicated on the tire.
1 Pump the tire to the recommended tire
pressure.
Tire pressure in bar for body weight
Tire width
about
60 kg
25 mm
6.0
28 mm
5.5
32 mm
4.5
37 mm
4.0
40 mm
3.5
47 mm
3.0
50 mm/2.0"
2.5
2.0
55 mm/2.1"
2.0
60 mm/2.35"
Table 35: Recommended tire pressure for Schwalbe
2 Perform a visual check on tires.
Figure 93: Correct tire pressure. The tire is barely
deformed under the load of the body weight
Figure 94: Much too little tire pressure
Operation
about
about
80 kg
110 kg
7.0
8.0
6.5
7.5
5.5
6.5
5.0
6.0
4.5
6.0
4.0
5.0
4.0
5.0
3.0
4.0
3.0
4.0
92
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