Apply grease on the underside of the aluminum countersunk bolt (between the bolt and top cap) and also apply grease on the threads for a proper fit! Finish tightening with the bike on the ground and headset fully engaged.
Deity Crosshair Headset Cap Kit in Green
Deity Crosshair Headset Cap Kit in Blue
Deity Crosshair Headset Cap Kit Bronze
Fiorky Bike Headset Cap, Bicycle Headset Cap with Screw MTB Road Bike Stem Headset Top Cap Cover Aluminium Alloy Bicycle Stem Top Cap for Fork Head Tube Cycling Accessories