Delta Stem Raiser

The Delta Stem Raiser is designed for standard threadless steerer tubes. As long as your bike uses a standard threadless setup, it should be compatible, but it is not intended for threaded quill stems.

This component provides a fixed height increase of 3-1/4 inches. It is a great option if you are looking for a significant, upright adjustment to your riding position.

Installation is straightforward and requires basic bike tools. You simply clamp the raiser onto your existing steerer tube, then reattach your stem to the top of the raiser.

Raising your handlebars will shift your weight slightly backward and create a more upright, relaxed posture. While this improves comfort on longer rides, it may slightly alter how the bike handles during aggressive cornering or steep climbs.

Because this adds over three inches of height, your existing cables may become too short. You should be prepared to replace your brake and shifter housing and cables to accommodate the new, taller cockpit position.