The Leading
Chromoly Steel Bike Frame Manufacturer

With a small MOQ, you can create your own customized geometry frames.
Various types of high-quality hand-built chromoly bike frames are available.

Featured Chromoly Frames

We make a wide range of Chromoly Steel Frames.
Our framesets cover with wide selection of single speed, road bikes, MTB, gravel/CX bikes.

Begin customizing your 4130 chromoly frames today

We are taking care not to make the steel bike frame too heavy. Butted steel tubing allows us to keep our weights low while maintaining stiffness.

We design chromoly frames that are both long-lasting and versatile. We will assist you in designing frames and forks that will last a long time.

In addition, #4130 chromoly and Reynolds tubing are both available for your build.