
2025 BMC Kaius 01 Three - Stone Grey
BMC- Kaius 01 THREE brings gravel racing to its peak. Equipped with Shimano GRX Di2 and our CG 40 SL carbon wheels, it's built for tough terrains and podium finishes.
Engineered by BMC's Impec Lab with advanced premium composite carbon technology, the Kaius 01 THREE is the ultimate gravel-racing machine. Built on a race-optimized geometry, it delivers the ideal balance of stiffness, lightness, and compliance, maximizing traction on loose terrain, front-end stability, and climbing efficiency. Our ICS cable integration and Aerocore design make it one of the fastest bikes ever crafted for gravel racing. Outfitted with Shimano GRX Di2 and CG 40 SL carbon wheels, the Kaius 01 THREE is ready to elevate your speed and performance on every ride.
Speed Unbound
The innovative premium carbon layup uses ultra high-module fibres for unmatched stiffness resulting in maximum power transfer and minimal weight. Kaius boasts our Tuned Compliance Concept Race Technology for a comfortable ride on rough surfaces.
Gravel Race-ready
Kaius: the fastest on gravel. The geometry features a longer reach to improve stability and increase traction. It's designed for 1x or 2x drivetrains and complies with SRAM Full Mount for UDH dropout or Hangerless Interface derailleurs.
Integrated Cockpit System (ICS)
The aesthetic simplicity and innovative functionality of the Integrated Cockpit is the epitome of Swiss engineering and design. ICS keeps shifter wires and brake lines in their place: out of sight.
Aerocore Design
Kaius comes in at the highest level of functional integration with our Aerocore design. This evolved solution integrates the bottle cages into the frame to optimize aerodynamic performance.
- Frame:
- Kaius 01 Premium Carbon with Aerocore Design | ICS Technology Stealth Cable Routing | UDH Dropout (Universal Derailleur Hanger) | TCC Race Compliance Level | Flat Mount Disc | 12 x 142mm Thru-Axle
- Fork:
- Kaius 01 Premium Carbon | ICS Technology, Stealth Cable Routing | TCC Race Compliance Level | Stealth Dropout Design | Flat Mount Disc | 12 x 100mm Thru-Axle
- Stem:
- BMC RSM 01 | Integrated Cockpit System Technology
- Handlebar:
- BMC HB D4 03, 0, 12 | Alloy 6061 | 125mm drop, 70mm reach, 12° flare
- Seatpost:
- Kaius 01 Premium Carbon D-Shaped Seatpost | 15mm Offset | D-Fender Compatible
- Saddle:
- Fizik Vento Argo X3 | Kium rails | 140mm
- Crankset:
- SHIMANO GRX (FC-RX820-2)
- Chainrings:
- 48-31T
- Cassette:
- SHIMANO Ultegra (CS-R8101)
- Cassette Size:
- 11-34T
- Chain:
- SHIMANO CN-M8100
- Rear Derailleur:
- SHIMANO GRX Di2 (RD-RX825)
- Shifters:
- SHIMANO GRX Di2 (ST-RX825)
- Gears:
- 2 x 12
- Bottom Bracket:
- SHIMANO Press Fit SM-BB72
- Brake Levers / Calipers:
- SHIMANO GRX (BR-RX820)
- Rotors:
- SHIMANO RT-CL800 | Centerlock
- Rotor Size (F/R):
- 160 / 160mm
- Rims:
- CG 40 SL Carbon | Tubeless Ready | 40mm
- Hubs (F/R):
- CG 40 SL
- Tires:
- Pirelli Cinturato Gravel H | 40mm
- Tire Clearance:
- 44mm
- ASTM Classification:
- Level 2
- System Weight Limit:
- 120kg
- General Product Safety Regulation (GPSR):
- Safety Instructions GPSR (EU), Responsible Person (GPSR (EU)) (repeated references to Safety Instructions and Responsible Person under GPSR (EU))
- Weight without Pedals:
- 8.3 Kg
- Tubeless Information:
- Tubeless Rim | Tubeless Tires
- In the Box:
- Aerocore Design Carbon Bottle Cages
- Power Meter:
- 4iiii Precision Gen3+ Power Meter (Non-Drive Side)
- Front Derailleur:
- SHIMANO GRX Di2 (FD-RX825)