10
HP
Velotechnik
After moving the bottom bracket tube your
dealer has to adjust the chain length. By default
the Gekko fx comes with a very long chain so
the adjustment range of the tricycle can be ful-
ly used without the need to lengthen the
chain.
After the basic adjustment of the leg length
done by your dealer before handing over the
tricycle, the chain has to be shortened so that
the derailleur cage is not fully turned forward
while shifting on the largest chain ring in front
and the smallest sprocket behind.The de-
railleur must still be able to compensate a
length change of the chain of at least 4 cm (1
1/2"). In order to choose the right chain
length, please consult the manual of the de-
railleur manufacturer.
After adjusting the front boom the gap in the
clamping slot between the front boom and the
main frame should be sealed with wax or sili-
cone in order to protect your frame from the
penetration of water and dirt and hence dam-
age through corrosion which may lead to a
broken frame.
We recommend to slightly readjust the front
boom every 3 months so that knees in order
to provide a slightly different position to your
muscles and ankles.You might also find a more
comfortable and more efficient riding position.
A wrong adjustment may lead to pain in your
knees and inefficient pedaling. In addition we
recommend to ride with a high pedalling ca-
dence, which means to pedal fast and with lit-
tle pressure. Pedalling with too much pressure
may also lead to pain in the knees.You will find
more information about this on
page 19
.
Adjusting the leg length
Check that there is at least a 5 cm (2") clearance between the
end of the chain tube and other parts of the drive train.
Danger!
After the chain has been short-
ened it must be closed with a special closing
link or a chain riveting tool that expands the
rivet while riveting (i.e. R
OHLOFF
-Revolver).
A poorly joined chain may break and thus
lead to damage or injury. Chain length ad-
justments or chain changes should be done
by your bicycle mechanic.
Caution!
Take care that the chain tubes
have a clearance of at least 5 cm (2") to the
rear derailleur and the front derailleur even
under maximum tension of the chain and
make sure that the tubes are held tight in
their fastenings. Shorten the tubes if neces-
sary. If the end of the chain tube gets in
touch with the rotating chain rings it can be
locked-up and destroyed.
