BMC's gravel bikes, the Kaius and the URS, unbound speed, swiss design. Kaius dominates Gravel Worlds, and the URS is optimized for a modern, aggressive gravel riding style. Featuring a slack 70˚ head angle to create a long front-end and wheelbase. Want a more forgiving ride? Stick with the URS. Prefer to rip it up on gravel with the speed of a racing road bike? It's time to KAIUS.