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Discussion Starter · #1 ·
I just rec'd a TREK 970 (It was built in 1996). It has a dia-compe aheadset. Can anyone tell me if this headset is "threaded" or "threadless"? I know I can find out by taking it apart but that's not something I can do at this time. It came with Rocksox Judy XC"s.

Thanking you in advance.
Kevin
 

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Threadless. The original threadless headset in fact (though released years earlier than yours).
 

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now, was that the one that, instead of the headtube having a star nut to snug it down, the headset had some kinda wedge that tightened down as you tightened the allen screw? i seem to recall having an old marin with a dia-comp headset like that. never really liked or trusted it.
 

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It was called an Aheadset to differentiate it from threaded headsets, became a sort of generic name for threadless headsets for a while after it came out...
 
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