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Velotechnik
In order to check the adjustments have anot-
her person hold the bicycle while you are sit-
ting on the recumbent.
Adjust the front boom in such a way that your
leg is fully extended when your heel (wearing
flat shoes) is in the foremost position on the
pedal. Experience shows that the pedal-to-seat
distance on a recumbent can be slightly longer
than on a conventional bike.
While you are pedaling, the ball of your foot
should be positioned over the center of the
pedal axle.
It is important that your leg is not fully straigh-
tened when the crank is in the foremost posi-
tion. If the distance is too great it is difficult to
overcome this dead point, pedaling becomes
uncomfortable and there is too much strain on
the sinews of your feet and legs. If the distance
is too short you may suffer from knee pain or
your legs bump on the handlebar.
For riders with a short leg length the front
boom has to be cut by a bicycle mechanic, so
that it can be inserted to the maximum. It is
important to trim the end of the tube neatly.
The bare metal of the shortened tube end has
to be protected against corrosion with a paint
stick or wax spray.
The opening of the main frame is padded with
a plastic paper sleeve that accomplishes the re-
quired clamping and protects the surface of
the front boom.When the front boom has
been completely removed take care not to da-
mage the plastic paper adding while inserting it
again.
Adjusting the leg length
Adjust the front boon so that your knee will not be fully straighte-
ned when pedaling.
Caution! The minimum insertion depth of
the front boom into the main frame is 10
cm (4"). In no case may the end of the front
boom be visible in the clamping slot when
you look at the main frame from below, sin-
ce it may result in a damage of the frame.
The rear end of the front boon must never be visible in the clam-
ping slot.