VRZ 1. is a track bike frame with 3d printed stainless steel lugs glued together with carbon fiber tubes.
This method allows to build custom frames in a short period of time.
You could change the geometry to what ever fits you best, then the lugs gets generated by a software.
The generated 3D files are produced with laser-cuseing process. Afterwards the printed parts need to be finished and bonded to the tubes.
The fork is 480 g and the frame weight is 1100 g !