Triathlon bike gear is primarily concerned with aerodynamics, usability, and user-friendly adjustment. But now and again, even the staunchest physicist can get the itch to venture into weight-weenie territory, no matter how little the potential time savings. Or, if we want to keep our 'logical thinker' hats on, we can devise scenarios in which going full weight-weenie makes sense, like a point-to-point steep uphill time trial. No matter our reasoning, this is our ultralight build, which we are calling Weapon X. The name comes from our original goal to make a bike that would clock in at below ten pounds. And we made it. This glorious 1x build is exceptionally light in weight, but nevertheless completely robust, and just as capable descending the hill as it is floating up it. There are custom bits everywhere on this rig, so have a close look at the writeup for all the details!
The Extralite Hyperstem seemed the best choice for this project. There are stems that can save another 10g or so, but those stems tend to have astronomical price points. At 80g, this is about as light as it gets anyway. We made a little custom mod to allow the front brake cable to route through the stem and stop there, sending just bare wire down to the front brake for the cleanest possible look. Cockpit + Drivetrain »