Carbon Steerer?

Posted on Wed 11th, August 2010

• #1

the_loop

Just bought a set of carbon forks for a new fast/stealth build, never had any carbon parts before and was surprised to find the forks rattled when I picked them up. Looking inside I found some kind of plug which I could slide in/out, and below the plug was some threaded thing that was sliding up and down in the steerer. Please could someone explain what these bits are for?! See pics attatched..

Ta
• #2

retrodicorsa

You can't use the traditional 'star fangled nut' that is hammered into steel/alloy threadless steerers, instead you have to use an expanding bung for the top cap screw to thread into - what you show in the pics is part but not all of said bung. You will need a complete one to use the fork - DO NOT under any circumstances try and fit the type that you have to hammer in.
• #3

dubtap

^ what he said. You need one of these

http://www.probikekit.com/display.php?code=NP06801
• #4

retrodicorsa
^ thanks - couldn't be bothered to find pics!

p.s. NOT one of these:

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