BMC Kaius 01 gravel bike widens tyre clearance to 52mm with aero-focused update

All-new BMC Kaius 01 gravel bike widens tyre clearance to 52mm, lengthens chainstays and tightens geometry for improved aerodynamics, ride comfort, and front-end control. Available as Kaius 01 One, Two and Three (with SRAM XPLR AXS or Rival XPLR AXS) plus a frameset, the complete bikes weigh about 7.1–8.3 kg depending on spec and support 32–50T chainrings (38–50T with a chain keeper). BMC claims the Kaius is faster as a complete system than its predecessor, delivering a more capable all‑terrain racer-forge platform with wider tyres.