a2b Obree, Руководство пользователя

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3.4 Adjustment of the seat height
The seat height may have to be adjusted. Please ask your A2B
specialist dealer to adjust the seat height before your first tour. You
may also adjust the seat height on your own as indicated below:
Determination of the correct driver's seat height
There are several ways of determining the correct seat height; the
method which can be carried out without any further auxiliary means
is described in the following: Sit on the saddle and stretch one leg.
Put your foot's heel on the pedal which is on the lowest point of the
crank turn. Your knee should now be almost straightened.
If you are sitting straight on the saddle while having this position,
the saddle's height is correct.
Of course, you then do not drive with legs stretched. If you put your
foot on the pedal while having the correct driving position (ball of
foot and metatarsophalangeal joint above the pedal axle), the knee
will remain slightly angled also on the lowest point of crank turn if
the saddle height has been adjusted correctly.
A short test ride is recommended to find out if the saddle is too high.
If the pelvis tilts to the right and the left in the rhythm of pedalling, the
saddle is too high. If the saddle is too low, you will usually find it out
only after many kilometres through pain in the knees.