Gear system and chain
42
HP
Velotechnik
Attention!
Please read the manual of
the gear system manufacturer carefully
before working on the gear system.
Adjusting the gear indexing for the rear derail-
leur
Adjust the adjuster barrel where the shift
cable touches the rear derailleur. Do it in
small steps of half a turn.
Check after each adjustment whether the
chain moves smoothly up to the next larger
sprocket. To do this, either turn the cranks by
hand or ride the bicycle.
When the chain climbs up easily, you need to
check that it still goes down easily onto the
smallest sprocket. If necessary turn the ad-
juster barrel a little more and then try shifting
gears again.
Danger!
If the chain shifts over the
smallest or the biggest sprocket you have
to readjust the end-limit adjusters of the
rear or the front derailleur.
Incorrect adjustment can lead to the chain
coming off, getting stuck or damaging the
spokes, which may result in serious falls. The
adjustment of the end-limit adjusters is a job
for a professional bicycle mechanic.
Danger!
If the bicycle falls over, the
derailleur or its mounting can be bent
which results in a change of the derailleur
movement range. Check the movement
range and have it readjusted by your bicy-
cle mechanic, if necessary.
All moving parts of the gear system are affect-
ed by wear. Cleaning and lubricating these
parts frequently can prolong the life of these
parts. However, they will have to be replaced
once worn out.
The cables have to be checked, cleaned and
serviced regularly. Expect more wear and
corrosion when the bicycle is often parked
outside in bad weather conditions.
Attention!
Damaged cables that
show for example single wires have to be
changed immediately. Otherwise they may
damage your gear system. Take care that
the ends of the cables are protected with
fitting caps.
Chain
The chain is a wearing part that has to be
lubricated regularly and to be changed at signs
of excessive wear and tear. The amount of
wear depends on maintenance and care as
well as on the circumstances of your ride
(rain, dirt, salt). Regular cleaning and lubricat-
ing can increase the chain’s lifetime, neverthe-
less the chain has to be changed when its
wear limit is reached.
Lubricating the chain
Diligent lubrication is important. The chain of
your bicycle is approximately 2.5 times longer
than a standard bicycle chain (approximately
3.8 m). But it also lasts longer since a chain
only wears while bending at the sprockets and
the chainrings.
Use good chain oil that won't leave a sticky
film on the chain. The chain oil must not
contain any aggressive chemical substances
that might affect the surface of the chain tubes
or chain idler.
Specialist stores sell biodegradable lubricants.
HP V
ELOTECHNIK
recommends a DryLube-
type lubricant. This lubricant is purely based
on PTFE (Teflon) that keeps the chain clean
and dry. This way dirt simply falls off and the
tubes always stay clean.
It is important that you clean the chain with a
cloth before lubricating. Otherwise the fresh
oil washes the dirt that clings to the chain into
the gaps and the bushings where the dirt
causes heavy wear.