Eat My Dust The S-Works Crux 5 is the fastest gravel frame set ever built. Not just because it is so light. Not just because it is so aerodynamic. Not just because it rides off-road like a Tarmac on asphalt. But also because it delivers the shortest time to finish of any gravel bike ever made. More than any other bike, the Crux 5 converts your power into pure speed – tested on real race tracks, in real terrain, and by real riders. If you want to stand at the top of the podium at your next gravel race, nothing will get you there faster.