Here at BikeRumor, weve done a lot of factory tours over the years. Its always enjoyable to see what goes on behind the scenes, and to appreciate the craftsmanship that creates the bikes that we love. But even when weve been given access to a carbon bike factory, creating video of the entire process has usually been off-limits. Thats not all that surprising. There is incredible competition between various carbon manufacturers, and the concern of giving away trade secrets is very real. So when Revel Bikes teamed up with Dream Build to offer a video factory tour, it was surprising to see the level of detail included. In fact, the video starts out with one of the processes that weve never been able to share the process of turning raw carbon fiber filaments into prepreg carbon sheets. Obviously, there are still plenty of proprietary secrets the video isnt showing, like the exact process that theyre using to mold the inside of the frame, but based on what appear to be air couplers sticking out of the mold (and the airlines hanging next to the press), you can infer that at some point air pressure is used to inflate an internal bladder to squeeze the carbon fiber into the mold from the inside out. Still, its a surprisingly transparent look into what goes into making your next Revel Bike. revelbikes.com