What is the Promax Quill Adjustable Stem 85mm built for?

The Promax Quill Adjustable Stem 85mm is built for riders on threaded-fork bikes who want to dial in handlebar height and reach with a simple, adjustable cockpit. It swings through a full 0 to 50 degree range, letting you set a low, sporty position or raise the bars for a more upright, comfortable fit, then clamp it down securely. The 85mm extension suits riders who want a moderate reach, and the alloy head and column keep weight and corrosion in check with a clean silver finish.

This quill-style stem 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 a strong choice for vintage road bikes, commuter and city builds, and restorations that need an adjustable stem on a threaded steerer. Anyone refreshing an older bike or fine-tuning fit for comfort will find it a practical, affordable upgrade.