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PostPosted: Sun Nov 11, 2012 9:37 pm 
Old School Grand Master
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Joined: Sat Oct 06, 2012 5:17 pm
Posts: 3775
Location: Norn Iron
Am i right in saying the headset is designed for a quill and stem and new ones are designed differently?


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PostPosted: Sun Nov 11, 2012 9:51 pm 
Retro Guru
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Joined: Mon Mar 26, 2012 5:21 pm
Posts: 589
In Torqueless' picture the modern A-Headset is on the left and the older type on the right.

The older type for use with quill stems require a threaded steerer for the top and locknuts to screw onto. The stem is secured in the steerer.

A-Headsets (or threadless headsets) are for use with threadless steerers. The stem clamps around the top of the steerer.

You can buy converters to use a modern stem with a threaded headset and steerer: it's basically a quill stem but without the horizontal extension. Personally, I don't rate them as they have none of the advantages, but all the disadvantages, of both systems.


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