BMC Kaius 01 Three Gravel Bike Shimano GRX Di2 12-speed Stone Grey 2025

Inspired by BMC ’s flagship road bike, the Teammachine SLR01, the Kaius 01 Three is a true competition bike. It benefits from the Swiss brand’s finest technologies, with a few adaptations for gravel riding, particularly in terms of geometry. This bike is built around a high-quality carbon frame that combines lightness, stiffness, speed and durability.

In addition to this frame, which is designed to meet the specific demands of gravel riding, the bike is fitted with the Shimano GRX Di2 RD-RX825 groupset, ensuring fast and precise gear changes as well as high-performance disc braking in all conditions. The 40mm CG 40 SL Carbon wheels offer excellent performance on all terrains, making this Kaius 01 Three Stone Grey BMC e even better.

Technical specifications:

Frame:
- Frame: Kaius 01 Premium Carbon with Aerocore Design, ICS Technology, Stealth Cable Routing, Integrated Aerocore Bottle Cages, Stealth Dropout Design, TCC Race Compliance Level, PF86 Bottom Bracket, Flat Mount Disc
- Fork: Kaius 01 Premium Carbon, ICS Technology, Stealth Cable Routing, TCC Race Compliance Level, Stealth Dropout Design, Flat Mount Disc
- Axles: 12x100 mm/12x142 mm

Drivetrain:
- Crankset: Shimano GRX FC-RX820-2, 48-31T, 4iiii Precision Gen3+ Power Meter
- Cassette: Shimano Ultegra CS-R8101, 11-34T
- Chain: Shimano CN-M8100
- Rear derailleur: Shimano GRX Di2 RD-RX825
- Front derailleur: Shimano GRX Di2 FD-RX825
- Shift levers: Shimano GRX Di2 ST-RX825

Braking:
- Brakes: Shimano GRX BR-RX820
- Rotors: Shimano RT-CL800 Centerlock, 160 / 160mm

Components:
- Handlebars: BMC HB D4 03, 0.12, 6061 alloy, 125mm drop, 70mm reach, 12° flare
- Stem: BMC RSM 01, Integrated Cockpit System Technology
- Seatpost: Kaius 01 Premium Carbon D-Shaped 15 mm Offset
- Saddle: Fizik Vento Argo R5 - 140mm

Wheels:
- Wheels: CG 40 SL Carbon Tubeless Ready, 40mm
- Tyres: Pirelli Cinturato Gravel H, 40mm

Accessories:
- Bottle cages: Aerocore Bottle Cages

General information:
- Colour: Stone Grey
- Weight: 8.3 kilos
- Sizes: 47, 51, 54, 56, 58, 61

Geometry:

(mm)	47	51	54	56	58	61
A	510	530	550	570	595	620
B	390	397	401	405	410	414
C	85	106	123	144	170	196
D	428	452	468	493	513	533
E	546	559	569	579	592	604