Depending on how loose your headset bearing feels you can make adjustments to the bearing tension with the 5mm allen bolt located in the top cap.
Headset top cap torque.
Adding tension to the bolt will pull the threaded star nut which is found wedged inside the steerer tube upwards moving the fork crown race bearing more tightly into the lower headset cup.
On a custom bicycle headset cap for any type of bike.
You want the minimum torque to reduce play in the headset.
Do up the headset top cap until it is just tight at this point you should be unable to turn your stem spacers.
Too tight can damage bearings.
You will need to loosen stem then tighten this top cap slightly quarter turn or so.
Top caps are compatible with all 1 1 8 aluminum steerer tubes.
I would say 5 n m is safe.
Then tighten stem again.
The edc steerer plug is required for edc tool storage and is compatible with most aluminum tapered steerer.
A torque wrench is a good idea at this point.
Make sure it still turns freely.
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On to your problem it could be the clicking you hear is because the pre load top cap is a tiny bit loose.
Do not overtighten it.
Same is true for the end cap on a shimano hollowtech ii crankset.
The edc cap kit includes the worlds lightest headset top cap 4 2g and an edc steerer plug with drain hole which keeps crud out of your steerer.
Anything you can imagine.
It is non load bearing.
Align your handlebar stem and apply the appropriate torque rating to the steerer tube clamp bolts.
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