Every year, Custombike holds a contest called “Build da Fukker” that’s restricted to private gearheads and has the simple goal of creating a bad ass bike. This 1982 Honda CX500 that Chris Zernia built with stone was a finalist in the 2016 competition. When Zernia decided to build a bike he thought about the toughest material he knew and came up with the basalt mined from the Eifel Mountains. After a slab that weighed almost a thousand pounds was delivered, Zernia set about fashioning a hollow fuel tank, side coves, headlight fairing and seat out of the material. Stone isn’t the lightest material in the world, so the frame was reinforced with steel tubing to handle the extra weight. For the finishing touch, Zernia even built a helmet to match the bike. It’s not the fastest bike in the world, but it’s still gonna set records for world’s fastest stone bike.