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7.5.2.6 Checking the rim brake
Only applies to ebikes with this equipment
Checking the brake pads
We recommend that you also replace the rims
at the same time as every second brake pad
replacement.
1 Check whether the brake pads are worn
evenly on both sides of the rim.
2 Check whether the brake pads are worn to
one side.
If the brake pads are worn unevenly or worn
to one side, contact your specialist dealer.
3 Check whether the brake pad wear limit has
been reached.
If the brake pads have reached their wear
limit, they need to be changed. Contact
specialist dealer.
4 Check whether the brake pads can be
twisted.
If the brake pads twist, the brake pad
bracket is defective and must be replaced.
Contact specialist dealer.
5 Check that the brake pads move uniformly
and symmetrically towards the rim when you
pull and release the brake lever.
If the brake pads move unevenly, contact
your specialist dealer.
Checking the rim braking surface for wear
The side wall is more prone to wear in rim brakes.
The wear depends on the stress loads during
rides. Dirt between the brake pad and rim and
strong braking forces can have an impact on the
service life.
The rim must be replaced if the wall is less than
0.9 mm thick. If deep grooves are visible, rim
hooks will warp towards the outside or the braking
power will change, contact your specialist dealer
as soon as possible.
Replacing a rim requires considerable
mechanical expertise. Only a specialist dealer
should carry out this task.
Cleaning and servicing
153
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