Promax MA-595 Adjustable Threadless Stem

This stem is designed for a standard 28.6 mm (1 1/8 inch) threadless steerer tube. Please verify your bike's steerer size before purchasing to ensure compatibility.

The handlebar clamp diameter is 25.4 mm. This is a common size for many hybrid, city, and older mountain bike handlebars, but you should measure your current bar at the center to confirm it matches.

The adjustable design allows you to pivot the stem to raise or lower your handlebar height significantly. This helps you transition between a more upright, comfortable cruising position and a lower, more aerodynamic stance.

While the aluminum construction is durable, adjustable stems are generally intended for commuting, touring, and casual riding. For high-impact mountain biking, a fixed-position stem is recommended to ensure maximum stiffness and security.

Yes, the stem includes the integrated bolts required to secure both the steerer tube and the handlebar clamp. You will simply need a standard set of hex keys to make the adjustments and tighten it onto your bike.