What is the Promax Quill Adjustable Stem 105mm built for?

The Promax Quill Adjustable Stem 105mm is built for riders on classic threaded-fork bikes who want to fine-tune handlebar height and reach without swapping parts. It adjusts through a full 0 to 50 degree range, so you can set an aggressive low position or sit upright for comfort, then lock it in place. The 105mm extension gives a longer reach for riders who want to stretch out the cockpit, and the alloy construction keeps it light and corrosion-resistant in a clean silver finish.

This is a quill-style stem that fits 1 inch and 1-1/8 inch threaded forks, using the 22.2mm inner quill with the included 25.4mm shim, and it clamps 25.4mm handlebars. It is an ideal fit for vintage road bikes, city and commuter builds, and any restoration that needs an adjustable cockpit on a threaded steerer. Riders rebuilding an older bike or dialing in fit for comfort will get the most out of it.