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GRACE MX II Operating instructions
8.4.
Replacing the belt pulleys when they are damaged
The belt pulleys must be replaced if they are damaged by serious external influences. For
instance, if you land hard with the front belt pulley when riding over a rock or twig, it may
bend, and in this case will need to be replaced. Stones which are drawn in and get in
between the belt and belt pulleys can damage the teeth on the belt and may even damage
or tear off some of them. The affected belt pulley will need to be replaced in this case as
well. Whether or not you will also need to have the belt replaced will depend on the criteria
in the previous section. If there is wear on the drive and all components were in use for the
same time, we generally recommend you replace all components even if only one of the
components has reached its wear limit.
8.5.
Chain
Trail
The chain is susceptible to function-related wear which depends on maintenance, repair and
the how the GRACE MX II is used (performance, dirt, salt, riding in rain, etc.). The service life
can be extended by regularly cleaning and lubrication. However, the chain will need to be
replaced when it reaches its wear limit.
8.6.
Chain wheels, cartridge, rear derailleur rollers and the bottom bracket
Trail
All sprockets, chain wheels and the bottom bracket are susceptible to wear due to their
function. The wear on these components depends on maintenance, repair and the how the
GRACE MX II is used (performance, dirt, salt, riding in rain, etc.).
8.7.
Shift cables
The Bowden cables on the gears must be regularly maintained and may need to be replaced.
In particular, this can be case when GRACE MX II is often left outdoors and exposed to the
elements.