Promax DA-230 Stem

The Promax DA-230 is designed for handlebars with a 31.8mm clamp diameter, which is the current industry standard for most modern road, mountain, and hybrid bikes. If you are unsure of your current size, check the center of your handlebars where they attach to the stem; the diameter is often printed there.

A 60mm length is considered relatively short, which generally makes the steering feel quicker and more responsive. It is a great choice if you are looking to bring your handlebars closer to you for a more upright, comfortable riding position or if you want to sharpen up the handling of a bike that feels too stretched out.

The integrated mount is designed to work with most standard bicycle lights that utilize a universal or GoPro-style mounting interface. It keeps your cockpit clean by removing the need for extra handlebar clamps, but you should verify that your specific light model has a compatible mounting bracket.

Yes, you can install the stem in either a positive or negative orientation. Installing it with a positive 6-degree rise will help raise your handlebar height for a more upright position, while flipping it to a negative 6-degree drop will lower the bars for a more aggressive, aerodynamic posture.