AIMA BIG SUR Manual Del Usuario página 19

B Place the handlebar stem on the fork tube, with the display facing up.
Remove the top cap, use a 5mm hex wrench to tighten the screws that
secure the handlebar stem, and reinsert the rubber cap into the top
cap.
Step Four
Install the front wheel
Loosen the nut, then lift the fork,
A
and remove the plastic plug.
Remove the plastic insert card
B
from the front brake caliper.
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