York Fitness Performance Speed Bike Owner's Manual page 10

STEP 2
Slide the sliding seat (12) to the seat post (10) and fasten it with one flat washer (26) & one locking
knob (25) at the desired position.
Attach the seat (13) to the sliding seat (12) of the vertical seat post (10)
Insert the vertical seat post (10) into the tube on the main frame (16), fasten with a spring
adjustment knob (7) which could be used to adjust for the desired height.
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