Unlike my previous post, this build is a no holds bar try at making an ultra-light bike. Although there could be other options for the frameset, I’ve decided to build upon a Scott Addict R1 frame, which weighs 790g. While the AX Alpha could be used in such a build, it’s not yet available and the frame itself is almost double the price of the Addict. The same goes for the Spin Gato. The Guru Photon usually weighs more than the Addict, depending on the size, from the reports that I’ve seen. It’s also a lot more expensive than the Addict R1.