The Crux is the lightest gravel bike in the world, with the exceptional capability of massive tire clearance and performance gravel geometry. It’s not just the ultimate expression of gravel performance, it’s your one-way ticket to gravel enlightenment.This S-Works Crux comes spec'd with SRAM's pinnacle RED eTap AXS hydraulic disc groupset, lightweight and durable Roval Terra CLX Disc wheels, and 2Bliss Ready, 700x38mm Pathfinder Pro tires that hookup over nasty terrain.