titanium bmx frame design

The Titanium BMX frame has some unique features, which are the result of in-depth to determine the flexing and power-loss of BMX frames. These design features are explained below:

1. Horizontally ovalised top tube wraps around the head tube to form a junction with additional strength compared to traditional interactions (that typically only connect to the rear of the head tube).

2. The top tube is curved to form an interaction area at the head tube greater than if it were straight. In addition to the curve along the tubes length, the top tube form is such that it changes from being horizontally oval at the head tube (to resist out of plane bending caused forces from the handle bar region) to vertically ovalised at the seat tube to create vertical stiffness and a suitable contact surface area.

3. The seat tube is horizontally ovalised at the bottom bracket junction to help resist out of plane bending.

   Unlike traditional seat tube, the top of this design is positioned further forward thus effectively shortening the top tube. The reduced angle at the top of the seat tube still ensures the saddle position of a traditional seat tube design can be obtained.

4. Due to the shortening of the top tube, the seat stays are longer than traditional designs. This has the benefit of decreasing the angle of the seat stays (when measured from the dropouts to the horizontal) to promote vertical compliance whilst not compromising the horizontal stiffness of the frame.

   The seat stays begin at the dropout as a rounded section, bend to horizontally ovalised (to promote horizontal stiffness) before blending to vertically ovalised at the seat tube to facilitate a suitable connection to the seat tube.

5. The oversized down tube that blends from ovalised at the head tube (to help withstand the forces induced from end impacts) to horizontally ovalised at the bottom bracket to promote resistance to out of plane bending caused by the action of pedalling.

The complete bike can be viewed here