Schwinn 170i Upright Bike Assembly Manual page 11

5. Install Seat Post on Frame
NOTICE: Make sure the Adjustment Knob engages the Seat Post.
Do not set the Seat Post position higher than the stop mark (STOP) on the tube.
6. Attach Seat to Seat Post
NOTICE: Be sure the Seat is straight. Tighten the nuts (11b) on the Seat bracket (11a) to hold the Seat in position.
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10
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11
STOP
11a
11b
11b
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