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classic single-piece type
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shown with cable hole
The stem is the component on a bicycle that connects the handlebars to the steerer tube of the bicycle fork. Sometimes called a goose neck,[1] a stem's design belongs to either a quill or threadless system, and each system is compatible with respective headset and fork designs:
- Quill: the stem inserts into the steerer tube, which is threaded and does not extend above the headset.
- Threadless: the stem clamps around the steerer tube, which is not threaded and extends above the headset.
- ^ Brown, Sheldon. "Sheldon Brown Glossary: Goose Neck". Sheldon Brown. Retrieved 2008-01-01.