2026 BMC Kaius 01 FOUR Road Bike

2026 BMC Kaius 01 FOUR Road Bike

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.

SPECIFICATION

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 | Endurance Geometry | 125mm drop, 70mm reach, 12° flare
Seatpost	Kaius 01 Premium Carbon D-Shaped Seatpost | 15mm Offset | D-Fender Compatible
Saddle	Fizik Vento Argo X5 | 140mm
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
Brake Levers / Calipers	SRAM Rival AXS (ED-RIV-E1)
Rotors	SRAM Paceline | Centerlock
Rotor Size (F/R)	160 / 160mm
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