BMC Kaius 01 Four
Designed for speed and built for tough terrain. Comes with ICS cable integration and CG 40 carbon wheels and the newest SRAM Rival AXS XPLR.
Gravel Racing, Redefined. The Kaius 01 is the result of BMC’s obsession with gravel speed. Engineered in the Impec Lab with cutting-edge carbon technology, it’s purpose-built for competitive gravel racing. Its race-optimized geometry delivers the ideal mix of stiffness, low weight, and compliance - enhancing traction, stability, and climbing efficiency across demanding terrain. With the RSM01 stem featuring ICS cable integration and our new aluminum HB-D4-03 handlebar, our Aerocore design, this bike cuts through the wind and charges ahead. Equipped with top-tier components like the newest SRAM Rival AXS XPLR, and CG 40 carbon wheels, the Kaius 01 is ready to chase podiums and push boundaries on every ride.
Frameset
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
Cockpit
Stem:
BMC RSM 01 | Integrated Cockpit System Technology
Handlebar:
BMC HB D4 03, 0, 12 | Alloy 6061 | Endurance Geometry | 125mm drop, 70mm reach, 12° flare
Seat
Seatpost:
Kaius 01 Premium Carbon D-Shaped Seatpost | 15mm Offset | D-Fender Compatible
Saddle:
Fizik Vento Argo X5 | 140mm
Drivetrain
Crankset:
SRAM Rival XPLR AXS Wide (FC-RIV-1W-E1)
Chainrings:
42T
Cassette:
SRAM Rival XPLR (CS-XG-1351-E1)
Cassette Size:
10-46T
Chain:
SRAM Rival (CN-RIV-E1)
Rear Derailleur:
SRAM Rival XPLR AXS (RD-RIV-1E-E1)
Shifters:
SRAM Rival AXS (ED-RIV-E1)
Gears:
1 x 13
Bottom Bracket:
SRAM Press Fit DUB
Brakes
Brake Levers / Calipers:
SRAM Rival AXS (ED-RIV-E1)
Rotors:
SRAM Paceline | Centerlock
Rotor Size (F/R):
160 / 160mm
Wheels
Rims:
CG 40 Carbon | Tubeless Ready | 40mm
Hubs (F/R):
CG 40
Tires:
Pirelli Cinturato Gravel H | 40mm
Tubeless Information:
Tubeless Rim | Tubeless Tires
Accessories
In the Box:
Aerocore Design Carbon Bottle Cages
Additional Information
Tire Clearance:
44mm measured tire
Weight without Pedals:
8.3kg | Size 54 as pictured with all accessories
ASTM Classification:
Level 2
System Weight Limit:
120kg
General Product Safety Regulation (GPSR):
Safety Instructions GPSR (EU)