Vision Fitness E4000 - Manual (Page 11)

ALL MODELS
7
SEAT ADJUSTMENT
Grasp the Seat Adjustment Knob,
located at the base of the
seatpost. Pull the Knob out, then
raise or lower the seatpost to the
desired height. Release the Knob
and allow the seatpost to lock into
position.
SEAT POSITIONING
The seat is at the proper position
when your knee is slightly bent
when the pedal is in the furthest
position, with the ball of your foot
centered on the pedal.