Tyres And Rims; Rims; Chain Tensioning - eBike R004 Benutzerhandbuch

Caution! A loose wheel, especially a loose
front wheel poses maximum risk of falling!

Tyres and rims

The maximum permissible tyre pressure is
specified on the outer side of the tyre. Do not
ride the cycle with too little air (wheel skims) or
too much air (tube explodes). Wrong air pressure
or flat tyres lead to increased wear and tear even
if the bicycle is not used.
Our recommendation:
Tyre size
47-559 (26"x1,75x2)
50-559 (26"x1,90)
52-559 (26"x2,25x2)
57-559 (26"x2,125)
37-622 (28"x1 3/8x1 5/8)
40-622 (28"x1 3/8)
47-622 (28"x1,75x2)
50-622 (28"x1,90)
Air pressure
front rear
2,5 3,0
2,0 2,5
2,0 2,5
2,0 2,5
3,5 4,0
3,0 3,5
2,5 3,0
2,5 3,0
There are 3 valve systems for cycle tubes:
Please note that in case of Sclaverand valves,
you must first remove the dust cap and loosen
the knurled screw to pump or vent air. Always
make sure that the tyres have sufficient profile
and an undamaged body.

Rims

Rim wear indicator:
Many aluminium rims are equipped with a
wear indicator. Request your dealer to provide
detailed information.
Caution! A loose wheel, especially a loose
front wheel poses maximum risk of falling!

Chain tensioning

Ensure that the chain is tensioned correctly; it
is the most important part of the drive module.
A regular check is necessary since the chain
stretches in course of time. If necessary get the
chain re-tensioned by the dealer. As shown in
Figure, it should be possible to slightly move the
chain up and down by approximately 1.5 cm at
the centre of the two sprockets.
with BOSCH Drive Unit
59 GB