HP Velotechnik trikes - Manual (Page 25)

Adjusting your new tricycle
21
Handling instructions
Adjusting the lumbar support
The BodyLink® seat is ergonomically shaped
and supports the natural S-curve of your spi-
ne. Forces from pedalling are supported in the
area of your lower back just above your hips.
The amount of support in this area (lumbar
support) is adjustable by moving the seat back
and lower seat against each other.
To get more lumbar support, lower the seat
front edge and put the seat back in a more
reclined position.
To get less lumbar support, rise the front seat
edge and put the seat back more upright.
For maximum adjustment, loosen the 4
screws for the seat length adjustment in the
seat back. Thus the lobes of the lower seat
part can move more easily into the desired
shape. Tighten the screws and quick releases
as described above.
Caution! The three quick re-
leases have to be closed firmly (tightening
force 15-20 kg / 45 lbs) to safely hold the
seat. You must not open them while riding.
After they have been closed the imprint
"close" must be visible. If the quick releases
are not properly tightened the seat can
move while riding and you may lose con-
trol over your tricycle.
Please pay attention to the instructions
about quick release levers on page 8.
Seat cushion
The standard seat cushion consists of a 1,4 cm
thick layer of flexible EVA foam. This is a black
foam material with closed cells that is also
used in the production of high quality camping
mats. It feels very comfortable without ap-
pearing too soft or spongy. It is waterproof so
you can dry your seat with a sweep of your
hand in case your bicycle has become wet.
In order to take off the seat cushion lift up the
upper part a little bit from the seat. Then you
grab the cushion on both sides together with
the end of the Velcro that sticks out slightly
and remove the cushion slowly. In case the
Velcro comes off fasten it again with a good
glue.
Caution! The seat cushion is fas-
tened with Velcro and you can take it off.
For this purpose it is important not to
simply grab the foam and take it off since
the Velcro could come off.
Caution! Never expose the seat
cushion to extreme heat or focused
sunlight. The material warms up consid-
erably. The heat may melt the glue of the
Velcro. The seat cushion can be damaged
when the rays of the sun are bundled
through a lens. Take care to never leave
any bubble wrap on the seat in the sun.
The air bubbles in the film act like a burn-
ing glass and shrink the seat cushion.
For better ventilation, the Airflow Cushion is
available as accessory. This cushion consists of
several layers: A rigid mesh and a soft mesh,
which provides for an approximately 1 cm
thick air cushion with excellent circulation.
These two layers are wrapped up in a cover
that consists of fine mesh like it is known
from high quality rucksacks. You can wash the
Airflow Cushion at 30° centigrade and it dries
very quickly.
The seat cushion suffers from wear by con-
stant use. The mesh parts under punctual
pressure can be pressed together perma-
nently after some time of usage. In order to
still provide a good riding comfort, the Air-