Maintenance and car
e
35
HP
Velotechnik
36
Changing the chain
The chain is one of the parts of the trike that
will wear out.This shows in a stretching of the
chain.Worn out chains do not fit the sprockets
and chain rings any more and wear them away
very quickly.
Check the chain for lengthening regularly. For
this purpose try to remove the chain from the
chain ring.The chain may come off to a maxi-
mum of 5 mm. For a more precise reading you
can buy a chain measurement gauge in your
bike shop.
Only use chains that are suitable for the gear
system of your trike. Otherwise a precise gear
shifting is not guaranteed any more. Please
consult your dealer on this topic. He will also
assist you in checking your sprockets and chain
rings.A new chain does not fit a worn sprock-
et or chain ring.We recommend rust resistant
Rustbuster-chains from KMC with smoothly
rounded edges.They also provide a good gear
changing performance.
HP V
ELOTECHNIK
delivers spare chains by the
meter via your dealer. For this purpose please
indicate the exact length of your chain or or-
der it a little bit longer if you want to be sure
it fits.You will need approximately. 3,8 m of
chain.
The chain length has to be fitted so that the
arm of the derailleur is not fully stretched
when you shift on the big chain ring in front
and the big rear sprocket.The derailleur must
still be able to compensate a shortening of the
chain by 4 cm. Please also see the manual of
the derailleur manufacturer on the choice of
the correct chain length.
See that the joining link is not bigger in size
than the other chain links to avoid irregular
chain sounds.We recommend the joining links
by KMC. Every time you change the chain you
also have to apply a new joining link.
Make sure that any chain links in the chain are
not stiff, as this can cause some annoying and
not obvious problems with the gear system.
Make sure that you have not twisted the chain
180 degrees before joining it back together.
Caution!
When you change the chain take
care that the new chain does not show any
sharp edges or burrs.
Caution!
The chain has to be closed with a
special joining link or a chain riveting tool
that expands the ends of the rivet while riv-
eting (R
OHLOFF
revolver).A poorly joined
chain may break, you can come off the ped-
als and fall. If you are in doubt please have
adjustments of the chain length or the
changing of the chain be done by your bicy-
cle mechanic.
