Adjust Goose-neck (adjustable quill stem) on Specialized Expedition

Remove the bolt cover with a flathead screwdriver.

Loosen the goose-neck (adjustable quill stem) with a 6 mm Allen wrench.

After loosening the goose-neck (adjustable quill stem), it still may be stiff. Hold the wheel from turning and twist the handlebars from side to side.

If quill stem is still stuck then place 6 mm Allen wrench firmly into bolt and tap with a mallet.

Position the handlebars to your preferred height. Make sure not to pull cable and housing to tight. I could adversely effect shifting and braking performance.

Make sure you don't raise quill stem above minimum insert line.

Align the direction of the goose-neck (adjustable quill stem) with the front tire.

Firmly tighten the goose-neck (adjustable quill stem) bolt using a 6 mm Allen wrench.

Pop the bolt cover back on.

If calling a bicycle repair shop, refer to it as a adjustable quill stem (technical term) instead of goose-neck as mechanic may not know what you are talking about.