You will need this Top and preload kit if you plan on running the EDC tool inside your steerer tube. You can also use a standard top cap with a starnut or compression plug (but you cannot use the EDC tool system) The special collar allows you to preload your headset without the need for a traditional compression plug. The top cap fits the EDC tool system so you do not need to thread your steerer tube. Trust Message fork (i.d. of fork is too small to work with EDC stem top cap) RockShox Sid Ultimate Carbon (EDC tool will not fit) RockShox Sid Worldcup (EDC tool will not fit) KIT INCLUDES Stem EDC Top Cap EDC steerer plug Stem Preload assembly 2x 10mm, 2x 5mm, clip in headset spacers Comes with a washer and bolt to thread through a socket or cassette tool into the existing star nut for easy removal.
